Chemistry Caloric Content of Food Date Submitted: April 1‚ 2012 Date Performed: April 1‚ 2012 Lab Section: Chem-180-DL1 Purpose: The purpose of this lab was to measure the energy content of three different food items using the change in water temperatures from the heat of the food. Another purpose was to take the information acquired and become familiar with energy units used in food such as calories and joules. Procedure: The first step in this experiment was to weigh and record an empty 100mL
Premium Energy Heat Temperature
boiling point. This process works best when the boiling points of the components are significantly different (simple distillation). Components can be effectively separated by a one-step vaporization. Fractional distillation is used when the boiling temperatures are very similar and the vapour produced is a combination of the mixture. The addition of a fractionating column allows numerous small distillations to occur within the column as the vapour rises towards the condenser. This experiment will
Premium Distillation Evaporation Boiling point
Matter‚ Solutions‚ and Phase Changes Unit 1. What is matter? Anything that takes up space (volume) and has mass 2. Explain how to classify matter. (Homogeneous‚ Heterogeneous‚ Mixture‚ Pure Substance)? HOMOGENEOUS Matter that is made up of the same or alike particles Can’t see what makes it up Looks uniform HETEROGENEOUS Matter that is made up of different types of particles Can see what makes it up Mixture A material made up of two or more substances that can be easily separated
Premium Chemistry Solubility Solution
Levels 2.Climate / air temperature 3.Mass / Size of the animal 4.Temperature control levels within the animal 5.Surface Area of the animal 6.Circulatory System within the animal‚ eg double EXPERIMENT: Apparatus: ·3x Clamp Stands ·3x flasks (1x 100ml‚ 1x 250ml‚ 1x 500ml) ·Thermometer (To measure the heat loss) ·Stopwatch (To measure time intervals) ·Water Heater (To keep the water hot before the experiment) Method: 1.Water is going to be heated to a certain temperature in the water heater
Premium Thermodynamics Heat Temperature
the ensuing temperature variation around either wall may be predicted. Contrary to what might be expected‚ the waI1 temperature variation is very substantial in turbulent as well as laminar flow. An example shows the importance of this effect. NOMENCLATURE a‚ b‚ A‚ B‚ & c nt &A Fourier series coefficients ; wall conduction parameter; hydraulic diameter; t YY Y+‚ a‚ EH‚ u.’ eigenfunction; Reynolds number; radius of zero shear; temperature; radial temperature function; velocity;
Premium Fluid dynamics Temperature Thermodynamics
Introduction Supply Chain is one of the critical factors for the smooth functioning of any business in the world. When talking about fast food restaurant or business‚ McDonald’s Supply Chain model is one of the highest precisions. It is this unmatched Supply Chain Structure‚ which not just ensures on time delivery of raw materials and supplies to McDonalds but also enables it to cut down on its cost and maximize profitability along with maintaining highest quality standards of its products. From
Premium Supply chain management Milk Supply chain
whether four 5-8 246.93 ? specific firing temperatures affect the density of a certain type ? of brick. The experiment led to the following data. t is shown below. Fill in the Observations he P-value. (a) Does the firing temperature affect the density of the Cotton bricks? Percentage 1 2 3 4 5 (b) Find the P-value for the F-statistic computed in part (a). r Process Optimization and 15 7 7 15 11 9 g” (Solid State Technology‚ Temperature ( F12 ) 20 12 17 18 18 MS F P
Premium Tensile strength Analysis of variance Statistics
Why does snow melt in the sun at temperatures below freezing? The rate of snow melt is dependent on energy availability‚ which is mostly in the form of radiation. Cold snowpacks have a negative energy balance‚ but warming causes the snowpack to become isothermal and additional energy results in positive energy balance and melt. Daily snow melt in forested areas is considerably less than melt in open areas‚ as forests protect the snow cover from solar radiation and wind. Canopy warming can increase
Premium Energy Light Sun
COLLEGE OF SCIENCE UNIVERSITY OF THE PHILIPPINES‚ DILIMAN QUEZON CITY‚ PHILIPPINES RECEIVED NOVEMBER 20‚ 2012 INTRODUCTION Heat is a form of energy that can be passed from an object with high temperature to an object with low temperature. The heat required to change the temperature of a substance by 1 K is called heat capacity. A calorimeter is a device commonly used to measure the amount of heat that may be produced or assimilated by the system. This device encloses a reaction inside
Free Thermodynamics Enthalpy Chemical reaction
Determination of a Rate Law and Temperature Dependence of a Rate Constant By Marvin Coleman March 7‚ 2011 Abstract: From the shown calculations & graphical analysis‚ the experimentally determined rate law is rate = K[I-].969 [H2O2].991 and the experimentally determined activation energy is 59.50 kJ/mole. Introduction: The rate of a reaction varies at different temperatures and reactant concentrations. In this experiment‚ the orders and dependence of the rate constant of the products
Premium Chemical reaction Chemistry Temperature