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Four moles of a perfect gas is heated t...

Four moles of a perfect gas is heated to increaes its temperature by `2^(@)C` absorbs heat of 40cal at constant volume. If the same gas is heated at constant pressure find the amount of heat supplied.

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At constant volume `dQ=nC_(v)dT=dU=40`
At constant pressure
`dQ=dU+nRdT=40+(4xx2xx2)=56` cal
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