Two identical bodies are made of a material for which the heat capacity increases with temperature. One of these is at 100 °C, while the other one is at 0 °C. If the two bodies are brought into contact, then, assuming no heat loss, the final common t…

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Two identical bodies are made of a material for which the heat capacity increases with temperature. One of these is at 100 °C, while the other one is at 0 °C. If the two bodies are brought into contact, then, assuming no heat loss, the final common temperature is 1. more than 50 °C 2. less than 50 °C but greater than 0 °C 3. 0 °C 4. 50 °C

Doubtly AI · Accepted Answer

Answer: 1. more than 50 °C A body with larger heat capacity changes temperature less for the same heat exchanged. The 100 °C body has the larger heat capacity, because heat capacity increases with temperature. In the exchange, both bodies handle the same heat Q . The hot body's temperature therefore falls by less than the cold body's rises. If the final temperature were exactly 50 °C, both would change by 50 °C and the hot body would have given more heat than the cold one took. So the final temperature is above 50 °C. Option (1).

Two identical bodies are made of a material for which the heat capacity increases with temperature. One of these is at 100 °C, while the other one is at 0 °C. If the two bodies are brought into contact, then, assuming no heat loss, the final common t…

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