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Explain why two bodies at different temp...

Explain why two bodies at different temperature `T_(1)` and `T_(2)` if brought in thermal contact do not necessarily settle to the mean temperature `T_(1)+T_(2)//2`.

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If two bodies, at different temperature, brought in thermal contact, heat flows from the body at higher temperature to the body at lower temperature till temperature to the body at lower temperature till temperature become same. The final temperature can be mean temperature, i.e., `(T_(1)+T_(2))//2`, only when both the bodies have equal thermal capacities.
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