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Explain why (a) Two bodies at differen...

Explain why
(a) Two bodies at different temperatures `T_(1) and T_(2)` if brought in thermal contact do not necessarily settle to the mean temperature `(T_(1) + T_(2))//2`.
(b) The coolant in a chemical or a nuclear plant (i.e., the liquid used to prevent the different parts of a plant from getting too hot) should have high specific heat.
(c) Air pressure in a car tyre increases during driving.
(d) The climate of a harbour town is more temperate than that of a town in a desert at the same latitude.

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