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A container of volume `V` is divided into two equal parts by a screen. One part has an ideal gas at 300K and the other part is vacuum. The whole system is thermally isolated from the surroundings. When the screen is removed, the gas expands to occupy the whole volume. Its temperature will now be .......

Text Solution

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This is a case of free expansion. Here `DeltaQ=0` and `DeltaW=0` , because gas is doing work on vacuum. So `DeltaU=0` . Hence no change in temperature, it will remain `300K` .
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