Which expression is correct for the work done | vedclass

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(D) The work done in any reversible expansion process is given by the general expression $W = - \int_{1}^{2} P dV$.For an adiabatic process,$q = 0$,an

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$W = - \int_{1}^{2} P dV$

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(D) The work done in any reversible expansion process is given by the general expression $W = - \int_{1}^{2} P dV$.For an adiabatic process,$q = 0$,and by the first law of thermodynamics,$\Delta U = W$.Since $\Delta U = nC_v \Delta T$,the work done is $W = nC_v(T_2 - T_1)$.However,the fundamental definition of reversible work for any gas expansion is $W = - \int_{1}^{2} P dV$.

Which expression is correct for the work done in adiabatic reversible expansion of an ideal gas?

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