InterviewSolution
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InterviewSolution
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A quantity of heat Q is supplied to a monoatomic ideal gas which expands at constant pressure. The fraction of heat that goes into work done by the gas `((W)/(Q))` is |
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Answer» `C_(P)dT=C_(v)dT+dW, therefore dW=(C_(P)-C_(v))dT` Fraction of heat converted into work `(dW)/(dQ)=((C_(P)-C_(v))dT)/(C_(P)dT)=1-(C_(v))/(C_(P))=1-(1)/(gamma)` For monoatomic gas, `gamma=5//3` `therefore (dW)/(dQ)=1-(1)/(gamma)=1-(3)/(5)=(2)/(5)`, |
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