For numbers 7-8, refer to the figure below. 95 90 85 80 75 70 65 60 55 Region I Region II Region III 50 0 30 60 90 120 150 180 210 240 270 300 330 360 390 420 450 480 Time, s Figure 1. Liquid-Solid Cooling Curve for a pure substance. Temperature, °C
For numbers 7-8, refer to the figure below. 95 90 85 80 75 70 65 60 55 Region I Region II Region III 50 0 30 60 90 120 150 180 210 240 270 300 330 360 390 420 450 480 Time, s Figure 1. Liquid-Solid Cooling Curve for a pure substance. Temperature, °C
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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Question
7. What happens to the average kinetic energy of the substance in Region I of the cooling curve?
A. Decreases
B. Increases
C. Remains Constant
D. Cannot be determined from the givenfigure
8. What should be the expected appearance of the substance in Region III of the cooling curve?
A. Solid
B.Liquid
C. Solid-Liquid
D. Cannot be determined from the given figure

Transcribed Image Text:For numbers 7-8, refer to the figure
below.
95
90
85
75
70
65
60
55
Region I
Region II
Region III
50
0 30 60 90 120 150 180 210 240 270 300 330 360 390 420 450 480
Time, s
Figure 1. Liquid-Solid Cooling Curve
for a pure substance.
Temperature, °C
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