In a given process for an ideal gas, $dW = 0$ and $dQ < 0.$ Then for the gas
IIT 2001, Easy
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(a) From FLOT
==> $dU = dQ - dW \Rightarrow dU = dQ( < 0)$ $(\because \;\;dW = 0)$
$ \Rightarrow dU < 0$ So temperature will decrease.
==> $dU = dQ - dW \Rightarrow dU = dQ( < 0)$ $(\because \;\;dW = 0)$
$ \Rightarrow dU < 0$ So temperature will decrease.
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