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100g of ice at -10C is placed into 100g of warm water in an insulated container. The initial temperature of the water before the ice is added is 80C.
A. What is the final temperature of the system?
B. How much heat flowed from the warm water in the approach of equilibrium?
C. Calculate the mass of the ice that remains when equilibrium is achieved.
D. Calculate the change in entropy of the warm water as it cools in the approach to equilibrium.
E. Calculate the change in entropy of the ice that warms to freezing and partially melts in the approach to equilibrium.
F. Calculate the net change in entropy between the initial and final states of the system.
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An ideal gas at 20 C consists of 2.2 X 10^{22} atoms. 4.3 J of thermal energy are removed from the gas. What the new temperature in C.
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