How much energy was transferred during the phase change shown on the cooling curve? Use the phase diagram and table of values below to help you answer the question WaterAlcoholHeat of Vaporization, H (J/g)2,260841vapHeat of Fusion, H, (J/g)334109Specific Heat Capacity of the Liquid, c(J/g•K)4.182.46 1. In an experiment, a closed container holds a 10.0 g sample of an alcohol. Thecontainer is cooled at a constant rate. The sample's temperature is recorded eachminute. A graph of the data is below. A phase diagram for the alcohol is alsoshown.COOLING CURVE FOR ANPHASE DIAGRAM OF AN ALCOHOLALCOHOLy62500liquidsolid4001.003002004.2 x 10-9100gas0-1015Time (min)150 159351 514Temperature (K) (not to scale)Temperature (K)20Pressure (atm) (not to scale)

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Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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How much energy was transferred during the phase change shown on the cooling curve? Use the phase diagram and table of values below to help you answer the question

Water
Alcohol
Heat of Vaporization, H (J/g)
2,260
841
vap
Heat of Fusion, H, (J/g)
334
109
Specific Heat Capacity of the Liquid, c
(J/g•K)
4.18
2.46

1. In an experiment, a closed container holds a 10.0 g sample of an alcohol. The
container is cooled at a constant rate. The sample's temperature is recorded each
minute. A graph of the data is below. A phase diagram for the alcohol is also
shown.
COOLING CURVE FOR AN
PHASE DIAGRAM OF AN ALCOHOL
ALCOHOL
y
62
500
liquid
solid
400
1.00
300
200
4.2 x 10-9
100
gas
0-
10
15
Time (min)
150 159
351 514
Temperature (K) (not to scale)
Temperature (K)
20
Pressure (atm) (not to scale)

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According to question

We have been asked the energy change,

given mass of alcohol = 10g

Melting point = 159 k

BOILING point = 351k

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