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    Exam 22: Heat Engines, Entropy, and the Second Law of Thermodynamics
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    Ten Kilograms of Water at 0°C Is Mixed with 10
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Ten Kilograms of Water at 0°C Is Mixed with 10

Question 28

Question 28

Multiple Choice

Ten kilograms of water at 0°C is mixed with 10 kg of water at 100°C. The change in entropy (in cal/K) of the system is


A) 1 000
B) 480
C) −720
D) 240
E) −168

Correct Answer:

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