Kinetic energy is increasing between letters A-B‚ C-D and E-F. Based off the observations‚ in phase A-B Tert-Butyl Alcohol stays a solid‚ in phase C-D Tert-Butyl Alcohol stays a liquid‚ and in phase E-F the chemical stays a gas. This is observed at the particle level because temperature is a measure of Ek; the temperature is increasing which increases kinetic energy. Since Ek is the energy of motion‚ the particles would increase their velocity and the number and force of collisions. However‚ the
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particles ____________________. Short Answer 6. Compare the shape and volume of solids‚ liquids‚ and gases. 7. What two phase changes occur between vapor water and liquid water‚ and at what temperature does each phase change take place? Essay 8. Use billiard balls to model the motion of particles in a gas. Use students in a crowded hallway to model the motion of particles in a liquid. Use an audience in a movie theater to model the motion of particles in a solid. Other USING
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of soapy water will be less than that of freshwater because H 2 0 has strong polar bonds‚ and when water is mixed with soap the polar bonds which help to bind the water together are weakened‚ thus lessening the surfacetension. Materials: pipette‚ liquid soap‚ water‚ beakers‚ penny‚ graduated cylinder‚ paper towels. Procedure: 1. I received a beaker filled with tap water. 2. I took a pipette and filled it upwith water from the beaker. 3. I began to add drops of water to a penny‚ which was headsup
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Senior Science Half-Yearly Revision 1. Surface tension - A property of the surface of a liquid. It is what causes the surface portion of liquid to be attracted to another surface‚ such as that of another portion of liquid. Surface tension is caused by cohesion (the attraction of molecules to like molecules). Since the molecules on the surface of the liquid are not surrounded by like molecules on all sides‚ they are more attracted to their neighbours on the surface. Mercury has a high surface
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solvent Pressure of solution containing unknown mu = 8.69 g mp = 250 g Find Calculate the molar mass Mw‚u of this unkown compound. Strategy We’ll start with Raoult’s Law (eq 5.21 on pg 164) which relates the partial pressure pa of a liquid in a solution to its pure vapour pressure p∗ by its mole fraction in solution χa . a pa = χa p∗ a This allows us to calculate the mole fraction of 2-propanol χp (in the solution with the dissolved unknown) to the solutions vapour pressure pp
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Name: Soo Jin Park Date: 02/20/15 Exp 5: Liquids and Solids Lab Section: 73427 Data Table: Boiling Point Trial 1 Trial 2 Trial 3 Temperature when the last bubble has emerged __86.5˚C _89.4_˚C 87.6_˚C Average temperature from all three trials 87.8˚C % error __6.55_% Melting Point Trial 1 Trial 2 Trial 3 Temperature when the acetamide melts _85.7_˚C 89.5__˚C 87.4_˚C Average temperature from all three trials __87.5˚C % error __8.07__%
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-How plants get liquid and minerals- Flowers absorb liquid through their roots‚ which are attached to xylem vessels. Xylem vessels are tubes that can expand through several feet of tissue and be .7mm in diameter. Their walls are thickened with cellulose deposits. Xylem bring water up to the leaves and petals of the plant. Even without contact with the roots‚ the xylem can still absorb water. Because of this‚ a cut flower usually doesn’t die for a couple days (as long as it is placed in water of
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The aim of the present study is to use detail diagnostic characters and instrumental validation for authentication of a traditionally important herbal drug known as “Vidari” in local Indian market. Vidari drug has four different botanical entities namely Pueraria tuberose DC (P.t) (family: Leguminosae)‚ Ipomoea mauritiana Jacq (I. m) (family: Convolvulaceae)‚ Adenia hondala de Wide (A. h) (family: Passifloraceae) and Cycas circinalis (C. c) Linn (family: Cycadaceae). In this study morphological
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2. Experiment 2.1. Cold Plasma Jet System This research used a cold atmospheric pressure plasma jet system with an inclined style of treatment (gradient = 45o) as shown in Figure 1. This system was developed based on Teschke et al.32 Medical-grade argon gas (99.999% purity) produced by the Samator Company (Indonesia) was used as a carrier gas. Two aluminium foil ring electrodes were used around the quartz tube for this system. It had a quartz tube with a 1.5 mm inner diameter and a 2.7 mm outer
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into water? Water is actually made up of lots of tiny particles. These tiny particles move around in water when it is in its liquid form‚ but as the temperature gets lower these particles slow down and hardly move. When it gets cold enough they stick together and then what was once a liquid has now became a solid we all know as ice. Ice turns into water‚ back to a liquid‚ when the temperature of the ice cube is rising which cause the particles in the ice to move faster and is the converted into
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