Evaporation Essays & Research Papers

Best Evaporation Essays

  • Evaporation - 766 Words
    Evaporation is a type of vaporization of a liquid that only occurs on the surface of a liquid. The other type of vaporization is boiling, which, instead, occurs within the entire mass of the liquid. On average, the molecules in a glass of water do not have enough heat energy to escape from the liquid. With sufficient heat, the liquid would turn into vapor quickly (see boiling point). When the molecules collide, they transfer energy to each other in varying degrees, based on how they collide....
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  • Evaporation - 350 Words
    Evaporation is one of the main methods used in chemical industry for concentration of aqueous solutions that means the removal of water from solution by boiling the liquor in a suitable type of evaporator and withdrawing the vapor (Coulson & Richardson,1983). The objective of evaporation is to concentrate a solution consisting of non-volatile solute and a volatile solvent. In the overwhelming majority of evaporations the solvent is water. Normally, in evaporation the thick liquor is the valuable...
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  • evaporation - 1864 Words
    Evaporation of Liquids Sometimes a liquid can be sitting in one place (maybe a puddle) and its molecules will become a gas. That's the process called evaporation. It can happen when liquids are cold or when they are warm. It happens more often with warmer liquids. You probably remember that when matter has a higher temperature, the molecules have a higher energy. When the energy in specific molecules reaches a certain level, they can have a phase change. Evaporation is all about the energy in...
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  • Evaporation and Salt - 285 Words
    An experiment to find the percentage of three separated components Research Question: Is it possible to separate salt, sand and iron filings from each other in a mixture, to figure out the percentage of each component in the original mixture? Background Research: In this Investigation, I will be separating sand, salt, iron fillings in a mixture and finding their percentages. Iron is a magnetic solid which is incapable of being dissolved in water. Salt is a non-magnetic solid which is...
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  • All Evaporation Essays

  • Liquid and Evaporation - 937 Words
    Rate of Evaporation of Different Liquids Objective of the Project This project is of the rate of evaporation of different liquid, in which we also discuss the factors which affect the rate of liquid. Introduction When liquid is placed in an open vessel. It slowly escapes into gaseous phase ventually leaving the vessel empty. This phenomenon is known as vaporization or evaporation. Evaporation of liquids can be explained in the terms of kinetic molecular model although there...
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    937 Words | 9 Pages
  • Evaporation and Transpiration Notes - 2190 Words
    Evaporation and Transpiration Evaporation and transpiration (evapotranspiration) are components of hydrologic cycle, which at principle, can be calculated from meteorological observations such as temperature, humidity, radiation, wind speed, etc. The process, however, is quite complex and a substantial literature has been produced on it. In this chapter our focus is mainly on the concept and simple estimations of evaporation and transpiration. Mechanism of evaporation from water surfaces Here...
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  • Rate of Evaporation- Research Paper
    Internal Assessment: Rate of Evaporation Ann George Mr. Frias/4th Period Wheeler High School Research Question How will changing the molar mass of alcohol affect the rate of evaporation, represented by the change in temperature over time, measured using a temperature probe? Research/Abstract Alcohol is an organic compound in which the hydroxyl functional group, OH, is bound to a carbon atom. Its carbon center should be saturated; it should have single bonds to three other atoms. The...
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  • Chemistry Project on Evaporation of Liquid
    Chemistry Project on Evaporation of Liquid Acknowledgement I would like to show my gratitude to my Chemistry Teachers Ms Seema More without whose support and encouragement this project could never have have taken the present shape . I would also like to thank my lab incharge Mr. Kakde For helping Me out During The Practical Part Of This Project. Aim Acknowledgment I am are greatly thankful for the cooperation and help from the Community Science Center (CSC) authorities and the Chemistry...
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  • Evaporation and Mass Flow Rate
    Determine the missing properties and the phase descriptions in the following table for water. Show all your intermediate work. No 1 2 3 4 5 6 7 8 9 10 190 100 280 400 7000 600 2000 2963.7 Saturated Liquid 60 1750 375 300 4893.1 1800 T (oC) P (kPa) h(kJ/kg) 275 4.00 0.0 Saturated Vapor v(m3/kg) u(kJ/kg) x (quality) Phase description 0.7 Question 2: (20 points) An insulated, vertical piston–cylinder device initially contains 10 kg of water, 5 kg of which is in the vapor phase. The mass of...
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  • Reduction Technique of Water Evaporation
    Critical Analysis of Literature Review Reduction Technique of Water Evaporation   Introduction When water evaporates from water storages it becomes a major issue that affects regions of agriculture in most lands leading to annual loss exceeding potentially to 40 precent and more of water storage. This water which is lost leads to reduction of productivity in agriculture affecting the environment adversely. Literature review has been developed on the same by various...
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  • Vapor Pressure and Heat Evaporation Lab Report
    Vapor Pressure and Heat of Vaporization Introduction: ​Evaporation is the process of a liquid becoming vaporized. When a liquid is placed into a confined space some of the liquids will evaporate. Evaporation of the liquid depends on the strength of the intermolecular forces that are between liquid molecules. During the evaporation process of the liquid, new gas molecules exerts pressure in the sealed container, while some of the gas condenses back to the liquid state. ​If the temperature...
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  • CHEMISTRY POC 2 Causes And Factors Evaporation
    What Factors Most Affect Evaporation? Intermediate-Level Science Projects    Which Materials Insulate Best Against Windchill? Do Clouds Tell Us What Weather Is Coming? What Factors Most Affect Evaporation? Evaporation of a substance such as water occurs when the molecules in a liquid state absorb enough heat energy to vaporize into a gas. The heat energy, which causes the molecules to move, is called kinetic energy. The water molecules remain the same during this change, except that they're...
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  • What Affects the Rate of Evaporation in Different Liquids
    What Affects the Rate of Evaporation? Aim * To find out if changes in temperature, draught and surface area of water open to air affects the rate of evaporation through the water. * To safely check if these variables change the rate of evaporation * To complete all the experiments in the short period given Prediction * I believe that a raise in temperature will speed up the rate of evaporation in the water * I believe that a larger surface area will speed up the rate of...
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    3,433 Words | 11 Pages
  • Differences Between Factors of "Evaporation, Vapour Pressure& Boiling Point"
    (1) Evaporation: Surface Area: Evaporation is surface phenomenon.Greater is surface area greater is evaporation and vice versa.For example, sometimes a saucer is used if tea is to be cooled, quickly.This is because evaporation from the larger surface area of saucer is more than that of the smaller surface area of the tea cup. Temperature: At high temperature, rate of evaporation is high because at high...
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  • DUAL EVAP REFRIGERATION - 485 Words
    DUAL EVAPORATOR SYSTEM DUAL EVAPORATOR SYSTEM What is a “Dual Evaporator System” ? As far as we know there is no classic definition for dual evaporator system. The two evaporators may be connected in different ways with the capillary tube(s) and compressor. Aditional valves are required depending on the system assembly. The most used ones are the directional valve at the end of the condenser and /or a check valve at the end of the freezer compartment. In some systems there is no...
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    485 Words | 3 Pages
  • Chem Lab Report 2
     Isolating the Components of a Three Component Mixture Abstract 1/3-1/2 page -Project goals: To separate the components of three mixtures sand, sodium chloride and calcium carbonate. Calculate the percentage by mass of each component, then calculate the percentage of each component recovered from the mixture. Show the concepts associated with physical and chemical properties of substances. -Three components of the mixture: The three components of the mixture that were...
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  • Lab6 latent heat - 1310 Words
    Hoang Ngo Lab 6 report Anita Dey Thursday 8am Abstract: We recently performed a liquid nitrogen experiment in finding the Latent heat of the substance. We isolated two parts of the experiment in order to find out how much evaporation of the liquid nitrogen was from the surroundings B and how much evaporation from the electricity G. 1. When a substance is undergoing a phase transition, more heat (energy) is being added to the Substance but its temperature (a way of measuring its energy) is...
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  • Process of Washing your Car
    How to Wash and Dry Are you washing your car or just damaging the paint? Cleaning your car should be a weekly thing, not just when you feel that your car is getting dirty or is already dirty. The up keep of your car isn’t easy either. You have invested many money and time in your vehicle. Shampooing, drying, and waxing are very simple tasks that will make your car sparkle all year a round. When you are washing your car should always find a cool shady spot to clean under. Once you have...
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  • Norbert Rillieux - 635 Words
    Norbert Rillieux Norbert Rillieux was born in New Orleans, Louisiana, on March 17, 1806. His mother, Constance Vivant was a freed slave from New Orleans, and his father, Vincent Rillieux, was a inventor and engineer. Vincent invented the steam-operated cotton baling press. Norbert's academic talents were seen at an early age by his father, and was sent to Paris to be educated. At the age of twenty-four, Norbert Rillieux was a teacher of applied mechanics at a school in Paris. In 1830, he...
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  • Woodlice Investigation - 1546 Words
    nvestigation into the Factor of Light and Dark Affecting Woodlice Predictions It was expected that a woodlice would prefer a damp, dark, but moderately warm surrounding. Normally one would expect to find slaters under logs or concrete slabs in one's garden. Under these large objects, the sun cannot reach directly; therefore it is darker, damper and colder than the surroundings. Nevertheless, in winter we do not see woodlice crawling around very often, and, also at night, it...
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  • Resent Technolgy in Chemical Engineering
    SAMPLE RESEARCH PAPER FOR SCIENCE FAIR Ms. Willis Excellent Evaporation Science Fair Research Paper By: Suzie Science Ms. Willis’ Class December 16, 2008 Background Information Liquids are all around us. Every day we drink and eat items that contain liquids, we use liquids to clean ourselves and our belongings and liquids can even be found in the places that we would not expect, like televisions. When someone watches liquid over time, an interesting thing...
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  • 4 Identifying Which Liquid Evaporates Faster
    June 28, 2013 FORMAL REPORT Group 4 Signature Leader: Issabette Pajarillaga __________________ Members: Jolly Cire Angeles __________________ Lyndon David Bumacas __________________ Christalyn De Guzman __________________ Danielle Clarisse Mariano __________________ April Bernadette Pantaleon __________________ Joerelyn Ruedas __________________ Charisse Brittney Ann Vicente __________________ THE SCIENTIFIC METHOD: IDENTIFYING WHICH LIQUID...
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  • Education Today - 491 Words
     It requires a lot of hit energy to transform a given quantity of water in to vapor. This energy is called enthalpy of vaporization. While water evaporates the temperature around it drops. We see this phenomenon in action in leaving things, they use sweat to low their temperature and also in many manmade tools. What is evaporation cooling? Evaporation cooling is a device that cools air by combining the natural process of water evaporation with an air moving system. Evaporative cooling is...
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  • Transpiration and Leaf Resistance - 1501 Words
    Transpiration and Leaf Resistance By: Bernina Berber Introduction Transpiration is a part of the water cycle process, and it is the loss of water vapor from parts of the plants. It is a process similar to evaporation. Evaporation and diffusion cause the plant tissue to have negative water potential. If you were to compare transpiration it would be like saying it is close to sweating (but in plants), especially in leaves but also in stems, flowers and roots. Stomata are dots with openings...
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  • Anacharis and Rate of Transpiration - 295 Words
    a. From 23 degrees to 28 degrees the slope of the line increases and shows a slight curve. The rate of evaporation increases with temperature since transpiration is a cooling mechanism to release heat. More stomata open as temperature increases as this allows a faster transpiration rate. Although, at much higher temperatures, plants close stomata to prevent excess water loss. b. The increasing humidity causes reduced transpiration rates. This is because atmosphere is saturated with water...
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  • Dehydration of Tomatoes - 1404 Words
    Discussion The unit operation drying is the one of the oldest preservation technique still in practice in modern food processing industry. The dried foods have long shelf life if the post process conditions are maintained thoroughly and effectively. The principal reasons behind this are the destruction of microorganisms which cause spoilage and decay of food by their growing and multiplying and also many of the enzymes that cause for undesired changes in the food cannot function properly at low...
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  • EXPERIMENT 1 - 843 Words
     EXPERIMENT 1 DETERMINATION OF MOISTURE NAME : NUR SUHAIDA YASMIN BINTI SUHAIMI STUDENT ID : 2013613016 GROUP : AS116 4A2 DATE OF EXPERIMENT: 18 / 12 / 2014 DATE OF SUBMITION : 15 / 01 / 2015 LECTURER’S NAME : MADAM MARDIANA AHMAD ZABIDI Introduction Moisture content of foods is most commonly measured properties of food materials. It is important in...
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    843 Words | 6 Pages
  • Analysis of a Chemical Reaction - 579 Words
    Analysis of a Chemical Reaction Purpose: To observe a chemical reaction and to use qualitative and quantitative evidence to identify this reaction from among four possibilities. Hypothesis: I think the result is going to produce water. I think this is going to happen because there is hydrogen and oxygen inNaHCO3. Materials: -Test tube clamp - 150 mm test tubes (2) - burner - retort stand - clay triangle - iron ring - crucible Procedure: Part A: 1. Add 0.5 g of...
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  • Bio Transpiration Paper - 1729 Words
    Hannah Baumann Bio 212 Lab: Thurs 10:00 Transpiration Laboratory Abstract: Transpiration is affected by many things including temperature and humidity; we were interested in seeing what other factors influence the rate that transpiration occurs. The purpose of this experiment was to explore how paint effects transpiration. I hypothesized that the rate of transpiration would decrease with the addition of paint to the bottom or the Laurel twig’s leaves. After collecting and analyzing...
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  • science - 991 Words
     2. Objectives The objectives of this experiment are to observe the keeping quality of some food products, study the various simple methods of moisture determinations using different drying method. And determine the water activity in some food samples such as biscuits, bread, flour and instant noodles by using water activity measurement machine. 3. Theory To determine the moisture content in the food, methods such as open dish method and infrared balance method are used....
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  • AP Bio Lab 11
    AP Biology The Effects of Environmental Factors on the Rate of Transpiration of a Plant Pre-Lab Questions 1) The transport of water from the roots up through the xylem to the leaves occurs because of several factors. As the minerals accumulate in the xylem, it increases the solute concentration and decreases the water potential. Therefore water diffuses from the soil into the root xylem due to osmosis. Water's adhesive and cohesive qualities allow it to stick to each other and to the walls...
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  • Biology Transpiration Practical - 1613 Words
    An experiment proving transpiration in leaves Aim To see how different environmental conditions affect transpiration of a leaf and which side of the leaf transpires the most. Background Information Plants put down roots into the soil to draw water and nutrients up into the stems and leaves. Some of this water is returned to the air by transpiration (when combined with evaporation, the total process is known as evapotranspiration). Transpiration rates vary widely depending on weather...
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  • Msds Phenolphthalein - 306 Words
    MMSDS of Phenolphthalein Identification | Product Number: | C2226 | Health: | 1 | Flammability | 1 | Reactivity | 0 | Hazard Rating: Least | Slight | Moderate | High | Extreme | 0 | 1 | 2 | 3 | 4 | NA = Not Applicable NE = Not Established | | | Product Name: | Phenolphthalein Reagent A.C.S., Powder | | | Trade/Chemical Synonyms | | | | Formula: | C–H”COOC(C–H”-4-OH)’ | | | RTECS: | SM8380000 | | | C.A.S | CAS# 77-09-8 | | | Hazard Identification...
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    306 Words | 2 Pages
  • Solar - 1076 Words
    Available ONLINE www.vsrdjournals.com VSRD-MAP, Vol. 2 (5), 2012, 166-173 Distillation of Water by Solar Energy 1Anirudh Biswas* and 2Ruby RESEARCH ARTICLE RESEARCH ARTICLE ABSTRACT The purpose of this research is to design a water distillation system that can purify water from nearly any source, a system that is relatively cheap, portable, and depends only on renewable solar energy. From the results of project calculations a truthful estimate was made to prototype the most effective...
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    1,076 Words | 3 Pages
  • Soil Erosion - 2383 Words
    Detailed Lesson Plan in Science IV (Soil Erosion) I. Learning Objectives a. Identify the agents of soil erosion. b. Explain how each agents cause erosion. c. Perform related activities enhancing knowledge about soil erosion. d. Enumerate ways and means on how to help prevent soil erosion. II. Subject Matter a. Topic: Soil Erosion b. References: c. Concepts: Soil Erosion and its Effects d. Sciences Processes: Observation, Experimenting, Analysing e. Materials: 2...
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  • I Integrating Science and Mathematics
    Integrating Science and Mathematics Many educators from around the United States have began to support and understand the connection between math and sciences and how important it is to integrate the two in their classroom lesson plans. These teachers understand how integrating math and science This can create great efficiency in their teaching method. The educator are teaching the two subject with the understanding that their student’s real life is not divided into subjects, so how...
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    4,055 Words | 20 Pages
  • Filtration - 508 Words
    Filtration is commonly the mechanical or physical operation which is used for the separation of solids from fluids (liquids or gases) by interposing a medium through which only the fluid can pass. Oversize solids in the fluid are retained, but the separation is not complete; solids will be contaminated with some fluid and filtrate will contain fine particles (depending on the pore size and filter thickness). Filtration is also used to describe some biological processes, especially in water...
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  • Separation of Mixtures Lab - 615 Words
    Katie Arrington 09/18/2012 09/19/2012 Title: Separation of Mixtures and Solids Purpose: The purpose of this experiment was to practice the process of separating mixtures of different solids. Procedure: This experiment consisted of different processes to separate a mixture of solids into the four individual solids: sand, benzoic acid, iron fillings, and sodium chloride. To remove the iron fillings from the mixture I used a magnet and scanned it across the entire mixture and the...
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  • Good Student Sand Salt Lab Report
    Breaking up is hard to do – Separating Sand & Salt Purpose: The purpose of this experiment is to separate a mixture of sand and salt. Materials: Small beaker Electric balance Sand Salt Water Graduated cylinder Stirring rod Filter paper Flask Rubber policeman Wash bottle Funnel Bunsen burner complete with rubber tubing and a source of gas Hot hands Insulator pad Ring stand complete with a ring Wire gauze Striker Pre-lab Questions: 1. Water will be useful in separating the salt and sand...
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    1,272 Words | 5 Pages
  • Investigating Stoichiometry with Carbonic Acid Salts
    Investigating Stoichiometry with Carbonic Acid Salts Problem: Testing the actual yield versus the theoretical yield of NaCl when HCl is titrated into Na2CO3 and NaHCO3. When 0.15g of both NaHCO3 and Na2CO3 are titrated with HCl, then 0.165g of NaCl should form from the NaHCO3, and 0.104g of NaCl should form from the 0.15g of Na2CO3. Procedure: Weigh 2 samples of 0.15g of dried unknown each, and dissolve each into 50mL of distilled water. Add 0.5 to 1mL of bromocresol green indicator until...
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  • Vapour Cycle System - 1071 Words
    Introduction Achieving a satisfactory comfort level for pilot and passengers is a primary goal when developing any aircraft environmental control system. Methods to meet this goal will differ depending on the size of aircraft, due to the changing volume of airflow there several way for air condition system for a aircraft. The best choice for small aircraft vapour cycle cooling system(VCCS) been used. Vapour cycle refrigeration is the predominant means of air-conditioning in small - and...
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  • Transpiration Lab Report - 286 Words
    LAB REPORT HYPOTHESIS 1: Plants transpire the most when the environment has light and less humidity JUSTIFICATION: Water evaporates more readily because light stimulates the opening of the stomata and photosynthesis would occur. HYPOTHESIS 2: Transpiration would occur the second most when there’s light and lots of humidity. JUSTIFICATION: The light would allow photosynthesis to occur and the stomata to open but little if any diffusion of water out the leaf would occur. HYPOTHESIS...
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  • My Document - 656 Words
    HOLIDAYS HOMEWORK Chemistry PRESENTED TO: MISS SAIMA BY: Fatima JEHANGIR GRADE: 9(O) METOHDS OF PURIFICATION & ANYLYSIS Filtration Filtration is a mechanical or physical process to separate solid particulates from fluids Filtration is a technique used to separate a solid from a liquid. The solid is separated from the liquid phase by passing the mixture over a filtering media. Filtering media is characterized by being chemically inert to the...
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    656 Words | 3 Pages
  • Area and Oasis Blocks - 1290 Words
    Internal Assesment - Task 2C In this experiment I am investigating the relationship between surface area and the volume of a model cactus and to determine whether this relationship affects the loss of water. We used oasis blocks, an absorbant material used by florists as a substitute for a cactus, that would soak up the water, and thus ideally show the percentage water loss by weighing the before and after evaporation weights. Independent Variable The independent variable is the total...
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  • Transpiration lap report - 1278 Words
    Transpiration Introduction: “Transpiration occurs when the water moves from the soil into plant roots, up through the stem and into the leaves. The water, warmed by the sun, turns into vapor (evaporates), and passes out through thousands of tiny pores (stomata) mostly on the underside of the leaf surface. Leaf transpiration occurs through stomata. Transpiration uses about 90% of the water that enters the plant. The other ten percent is...
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    1,278 Words | 4 Pages
  • Water and Post Lab Questions
    Lab 5 – Weather and Climate Change Lab 5 - Demonstration 1: Modeling the Water Cycle POST LAB QUESTIONS 1. Which water cycle processes are represented in this model and by what components? Answer = Condensation and evaporation are represented in the model. Condensation formed inside the jar and under the lid and the warm water evaporated. 2. Which processes are not represented? How could the model be altered to include these processes? Answer = Precipitation and infiltration did not get...
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    334 Words | 2 Pages
  • Food Tech Apricot - 1832 Words
    Development Of A Manufactured Product Dried Fruits- Apricots Presented To Mrs Lawrence and Mrs Mann Presented By Sophie Xian Year 12 food technology Introduction Drying is one of the most ancient methods of preserving foods; this method is still very popular and is used for drying fruits, beef (jerky), fish, evaporated milk and much more. This method removes the moisture content of food to restrict microbial activity. The main methods of drying include sun drying,...
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  • Transpiration Lab Write Up - 1038 Words
    Transpiration Lab Write-up. Introduction Transpiration is the evaporation of water from plants. It’s not simply a hazard of plant life but it’s the engine that pulls water from the roots to cool the leaf and supply photosynthesis. The concentration of water vapor in the atmosphere is lower than that in the leaf. Because of this difference, water vapor diffuses from the spaces of the leaf, through the stomata in the epidermis. Stomata are in the lower epidermis; the lower surface receives...
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    1,038 Words | 3 Pages
  • Fractional Distillation - 1139 Words
    Fractional Distillation of an Ethanol- water Mixture Abstract The purpose of this experiment is to understand the process of distilling a solution. Thesolution of 50/50 ethanol-water was used in the experiment. Using fractional distillationapparatus ethanol-water mixture was separated. The fractional use of copper sponge wasused in distillation process which created the heat exchange area between the vapor of ethanol and liquid water. The fractional distillation process yield 9.5 ml of...
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  • Evaporationin Our Daily Life
    In a society based only on materialistic possessions, sometimes we overlook even the simplest of things, and the most valuable to our survival as a human race and as a planet. Everywhere around us people envy great architects and artists because of their remarkable creations. Though, we, as a human race disregard the importance of less tangible commodities, developed by the greatest artist ever, Mother Nature. She has given us the most magnificent and staggering artwork imaginable, our...
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  • Osmosis Lab - 566 Words
    Introduction: In this experiment I aim to investigate the effect of the surface area to volume ratio on the rate evaporation of water in different sized containers. By measuring the time it takes for the whole amount of water to evaporate, a conclusion can be made about the validity of the surface to volume ratio in regards to the biological process of diffusion. Research Question: What is the effect of the surface area to volume ratio on the evaporation of water? Variables: -...
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  • Water Conservation - 503 Words
    How to Conserve Water Conserving water is an easy way to help me and the environment. It helps me because it gives me some money and it helps save the world. Saving water is very important because even though water does not run out we are limited of what people can use. So keep reading to learn how to conserve water at home. I enjoy taking long 20 minute showers. Well did you know that if the world takes 20 minute showers that we are wasting over...
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    503 Words | 2 Pages
  • Carrageenan Production - 1079 Words
    An integrated method is developed to utilize to a maximum extent the fresh biomass of seaweeds such as Kappaphycus alvarezii that can be crushed to release sap and where the sap is useful as a potent liquid fertilizer after suitable treatment with additives and dilution while the residue is a superior raw material for extraction of κ-carrageenan, thereby enhancing the value of the seaweed. Other advantages of the invention include a reduced drying time and drying area to obtain the raw material...
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    1,079 Words | 3 Pages
  • beach n the beaker - 1081 Words
    Beach In A Beaker Introduction: The purpose of this lab is to create a heterogeneous mixture from substances commonly found at the beach. Sand and salt water will be added to the beaker to be separated. The sand will then be separated through the means of filtration. Then the salt will be separated from the water through evaporation. Theory: If the heterogeneous mixture is separated through filtration then the salt water and sand should be separated completely.A heterogeneous mixture is a...
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    1,081 Words | 5 Pages
  • Gas and Atoms - 1250 Words
    Page 1 : E:\CC_Software\Workbench\CC-MW-CD\part2\phasechange\page1.cml 1. List three more everyday examples of phase change. -snow melting and freezing into ice -fuel being changed into gas for cars -ponds freezing over to have a layer of ice Page 2 : E:\CC_Software\Workbench\CC-MW-CD\part2\phasechange\page2.cml 1. Describe the motion of atoms and molecules in a gas. the atoms and molecules bounce off one another each time they come in contact with eachother. they never bond,...
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  • Atmospheric Thermodynamics and Relative Humidity Alternate
    Lab 1.06 Relative Humidity Alternate Lab Form Answer the questions. When you are finished, submit this assignment to your teacher by the due date for full credit. (27 total point) Pre-Lab Questions (7 total points) 1. How does temperature affect the air’s capacity to hold water vapor? 2. Using the chart below, what is the relative humidity for each of these? Dry bulb Wet bulb Relative Humidity 100C 70C 24% 280C 220C 3. What four factors influence...
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  • Salt and Sand Lab Report
    Brooke Thomas September 13, 2012 Separating Salt and Sand Lab Report Separating components of a mixture of salt and sand and calculate the mass of each. Salt is soluble and sand will sink to the bottom, you can separate the rest with filtering and distillation (boiling). If salt and sand are a mixture, then we can separate them by physical processes. Materials Ring with ring stand Funnel Wire triangle Stirring rod Filtering paper Beakers (400mL and 250mL) Rinse bottle...
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  • Lab 5 UWALLER - 503 Words
    Lab 5 – Weather and Climate Change Lab 5 - Demonstration 1: Modeling the Water Cycle POST LAB QUESTIONS 1. Which water cycle processes are represented in this model and by what components? Answer = Represented in this model are two processes of the water cycle; Condensation, Precipitation, and Sublimation, Evaporation. Warm water caused the solid water (ice) to melt, evaporate, condensation and become trapped on the lid of the petri dish. 2. Which processes are not represented? How could the...
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    503 Words | 3 Pages
  • Identification of a Hydrate Based on the Percentage of Water
    Identification of a Hydrate Based on Percent Water Varun Wadhwa 11/19/12 Introduction The identity of an unknown hydrate was determined by massing the hydrate before and after heating and calculating the percentage of water. Procedure First, we cleaned, dried and heated an evaporating dish for five minutes on an iron ring with the Bunsen burner and massed it. Then, we added 2 grams of an unknown hydrate and calculated the mass of that. Next, we used gradually increasing heat...
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    755 Words | 3 Pages
  • Chemistry Lab - 660 Words
    9/19/2012 Experiment #1-Density Aim: Learn how the process of distillation occurs. Observe how distillation separates alcohol from wine. Method: Distillation is based on the fact that the matter can exist in three phases - - solid, liquid and gas. As the temperature of a pure substance is increased, it passes through these phases, making a transition at a specific temperature from solid to liquid (melting point--mp) and then at a higher temperature from liquid to gas (boiling point--bp)....
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    660 Words | 2 Pages
  • sand and salt - 1269 Words
    EXPERIMENT 4: SEPARATION OF A MIXTURE Introduction: This experiment separates a mixture using the physical property of solubility. You will learn decantation and filtration, and will use a Bunsen burner to evaporate a liquid. You will use the Law of Conservation of Mass to check your accuracy Background: Mixtures are combinations of substances in which the components keep their individual characteristics, can be mixed in variable proportions and can be separated by simple physical...
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  • Empirical Formula of a Compound - 414 Words
    Empirical Formula of a Compound * Purpose: To determine the empirical formula of Magnesium Chloride. * Data 1. Mass of evaporating dish = 45.08g 2. Mass of evaporating dish and Magnesium = 45.17g 3. Mass of Magnesium: { 2 } – { 1 } = 0.09 4. Mass of evaporating dish and Magnesium Chloride First weighing = 45.48g (After heating and cooling) second weighing = 45.49g 5. Mass of Magnesium Chloride: { 4} – { 1 } =...
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    TITLE Vapour Liquid Equilibrium OBJECTIVE To find the Vapour-Liquid Equilibrium (VLE) relationship for binary mixture and to plot the equilibrium curve. INTRODUCTION The term equilibrium is referred to as when a system is in a static condition and there is absolutely no changes that occur as time goes by. Vapour-liquid equilibrium is a condition where a liquid and its vapor are in equilibrium with each other, a condition or state where the rate of evaporation is equal to the rate of...
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    Separation Techniques If one component of the mixture has magnetic properties, you can use a magnet to separate the mixture. Cobalt, iron and nickel all have magnetic properties. Note that not all metals are magnetic and magnetism is not a method to separate metals from non-metals. Gold, silver and mercury are examples of non-metal substances. Magnetism is however a way to separate magnetic substances from non-magnetic substances is. Magnetism as a separation method is done by taking any...
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    Ventilation The air around us is warmed up by everyday activities such as breathings, washing and drying clothes, cooking food, running electric motors and using electric lights. The composition of the air around us can also be changed by: chemical pollutants, pollen, dust, tobacco smoke and odors. These changes will make the air stale if it stays in a confined space. This may make us feel hot and sticky and can make us less efficient at work. To stop the air around us from being stale we...
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  • The Separation of a Liquid Mixture by Simple Distillation
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  • Mgt/360 Final Exam
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    Jake Mulham February 9, 2014 English 10H Ms. Loizides Duff Brenna stated, “All literature shows us the power of emotion. It is emotion, not reason, that motivates characters in literature.” In other words this quote says that characters in literature act on their emotions rather than logic, not thinking before they act. This quote is true based on many pieces of literature including Fahrenheit 451 by Ray Bradbury and A Separate Peace by Jake Mulham February 1, 2014 English 10H Ms....
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  • IB Biology Water Transport
    9.2.6 Explain how water moves from the soil to the leaves of a plant. At first water enters the root by osmosis because the soil water has a lower solute concentration of minerals than the epidermal cell cytoplasm (there is a water potential gradient). Water movement across the cortex cell is by two pathways both involving a water potential gradient. The cortex cell cytoplasm has a solute concentration gradient. This moves water symplastically from cell to cell by osmosis. The...
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  • Factors Effecting Transpiration Rates
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  • Misuses of Water - 761 Words
    The importance of water Water is one of the weirdest compounds known to humans. The difference between the boiling point and freezing point of water is one of the largest ranges of any compound. It is this span of temperature that mirrors the range of where life can exist, from bacteria to humans. Water also has a very high specific heat, which means that it can absorb or lose much heat before its temperature changes. This is important in maintaining body heat in mammals. It also takes a lot...
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  • Why do liquids evaporate at different rates?
    Section 1 As a member of Group 2, we were investigating why the liquids Ethanol, Propanol, Water, Pentane and Acetone evaporate at different rates. Methanol and Butanol were not liquids investigated by our group, but collectively as a class we were able to record averages of rates of evaporation. Solvent Molecular Formula Boiling Point (C°) Polar or Nonpolar Intermolecular Force(s) Lewis Dot Structure Methanol CH4O 64.7 Polar Hydrogen Bonding Dipole-Dipole London Dispersion Ethanol C2H6O...
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  • Lab 5 Weather And Climate Change
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  • marshmallows - 709 Words
    A Brief History of Marshmallows: Research Paper What is your favorite way to eat a marshmallow? Melted in hot chocolate after a long cold day? Or roasted and squished between a slab of chocolate and graham crackers while you are sitting around a campfire? However you like them, marshmallows are an unusual type of sweet treat—squishy, sticky, and a hint chewy, with a melting point that is just a bit above body temperature, so that they start to change from a solid to more liquid state as soon...
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  • Simple and Fractional Distillation Experiment
    Lab# 3 – Simple and Fractional Distillation Written by: Theressa Payne Partner: Jennifer Jantzi Performed: February 4,2013 for CHEM 7005 John Birtwell February 6, 2013 Lab # 3 – Simple and Fractional Distillation Introduction: One of the most important tasks in chemistry is the separation of organic compounds which are not usually found in pure form naturally or as products of chemical synthesis. Distillation is a common method for purifying liquids based upon their...
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  • Transport in Plants - 527 Words
    Transport in Plants Matthew H. 9A 131002 Today I will be discussing our experiment and the basics of transport of minerals and water in plants. Transport in plants are called transpiration. Water evaporates from the leaves which cause a type of suction that draws water from the roots. The water travels up via the vascular bundles. This flow of water is called transpiration stream. Some pressure is created forcing some water out of the cells in into the spaces between the...
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  • Separations of a Components of a Mixture - 729 Words
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  • Bio Lab Report - 1606 Words
    Biology Laboratory Report MEASURING RATE OF WATER UPTAKE BY A PLANT SHOOT USING A POTOMETER Introduction All plants need salts minerals, water, CO2 and O2. To fulfill their requirements different plants use different ways. Lower plants use diffusion, however higher plants use vascular tissue that is located in the middle of the root and in the vascular bundles in the stem. The transpiration is the important process in the plant. The main reason is that...
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