Of the following systems, which contains the most heat?
a. 100 kg of water at 80°C
c. 600 kg of ice at 0°C
b. 250 kg of water at 40°C
d. Systems do not contain heat.
D
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Two identical thermodynamic systems, one at T1 and the other at T2, are placed in thermal contact. When they reach thermal equilibrium, what is true about the final temperature?
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