This graph represents the cooling curve for a pure substance in a liquid stat Cooling Curve 60 50 40 30 20 10 1 2 3 4 5 6 Time (min) Why does temperature remain constant from when t = 2 min to when t = 5 m because heat energy is released from the substance as it changes from because the substance absorbs heat energy as it changes from a liquid because the substance absorbs heat energy as it changes from a liquid because heat energy is released from the substance as it changes from Temperature (°C)
This graph represents the cooling curve for a pure substance in a liquid stat Cooling Curve 60 50 40 30 20 10 1 2 3 4 5 6 Time (min) Why does temperature remain constant from when t = 2 min to when t = 5 m because heat energy is released from the substance as it changes from because the substance absorbs heat energy as it changes from a liquid because the substance absorbs heat energy as it changes from a liquid because heat energy is released from the substance as it changes from Temperature (°C)
Chemistry: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter8: Thermochemistry
Section: Chapter Questions
Problem 80QAP: Equal masses of liquid A, initially at 100C, and liquid B, initially at 50C, are combined in an...
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Transcribed Image Text:This graph represents the cooling curve for a pure substance in a liquid state at t = 0 min.
Cooling Curve
60
50
40
30
20
10
2 3 4 5
Time (min)
Why does temperature remain constant from when t = 2 min to when t = 5 min?
because heat energy is released from the substance as it changes from a liquid to a gas
O because the substance absorbs heat energy as it changes from a liquid to a gas
O because the substance absorbs heat energy as it changes from a liquid to a solid
because heat energy is released from the substance as it changes from a liquid to a solid
C
Temperature (°C)
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