When an ideal gas in a cylinder was compreswsed isothermally by a piston, the work done on the gas found to be `1.5xx10^(4)` cal. During this process aboutA. `3.6xx10^3 cal` of heat flowed out from the gasB. `3.6xx10^3 cal` of heat flowed into the gasC. `1.5xx10^4` cal of heat flowed into the gasD. `1.5xx10^4` cal of heat flowed out from the gas

When an ideal gas in a cylinder was compreswsed isothermally by a pist

1.	When an ideal gas in a cylinder was compreswsed isothermally by a piston, the work done on the gas found to be `1.5xx10^(4)` cal. During this process aboutA. `3.6xx10^3 cal` of heat flowed out from the gasB. `3.6xx10^3 cal` of heat flowed into the gasC. `1.5xx10^4` cal of heat flowed into the gasD. `1.5xx10^4` cal of heat flowed out from the gas
Answer» Correct Answer - A In isothermal process, `DeltaQ=DeltaW` `DeltaQ=DeltaW=-1.5xx10^4J=(-15xx10^4)/(4.2)=-3.6xx10^3cal` `DeltaQ` is `-ve` i.e., heat is rejected by the gas.

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