For substances that will be in thermal contact, how would we know which will absorb energy (heat), and which will release energy in the form of heat?

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
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CALORIMETRY
HEAT OF FUSION
Trial 1
Trial 2
Mass of ice Mece (grams)
79
79
Mass of warm water
120
119
Mwater (grams)
Initial temperature of water
Tinitial (°C)
41
42
Final temperature of mixture
Tfinal (°C)
-4
1
Calculated heat of fusion of ice
72.4
60.8
Lexperimental (cal/g)
Standard value of heat of
fusion of ice Ls,standard
(cal/g)
79.7
79.7
Percentage error
9.22%
23.76%
Transcribed Image Text:CALORIMETRY HEAT OF FUSION Trial 1 Trial 2 Mass of ice Mece (grams) 79 79 Mass of warm water 120 119 Mwater (grams) Initial temperature of water Tinitial (°C) 41 42 Final temperature of mixture Tfinal (°C) -4 1 Calculated heat of fusion of ice 72.4 60.8 Lexperimental (cal/g) Standard value of heat of fusion of ice Ls,standard (cal/g) 79.7 79.7 Percentage error 9.22% 23.76%
1. For substances that will be in thermal
contact, how would we know which will
absorb energy (heat), and which will
release energy in the form of heat?
Transcribed Image Text:1. For substances that will be in thermal contact, how would we know which will absorb energy (heat), and which will release energy in the form of heat?
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