Answered: For numbers 7-8, refer to the figure…

Chemistry for Today: General, Organic, and Biochemistry

9th Edition

ISBN:9781305960060

Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. Hansen

Publisher:Spencer L. Seager, Michael R. Slabaugh, Maren S. Hansen

Chapter6: The States Of Matter

Section: Chapter Questions

Problem 6.70E

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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

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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