Question

one mole of an ideal mnoatomic gas at temperature T is heated at constant pressure till the volume is doubled and then it is allowed to expand at constant temperature till the pressure is halved . Calculate heat supplied to the gas

Answer 1

$$\begin{gathered} dQ=dU+dW \\ astemperatureiscons\tan t,dQ=0 \\ dU=-dW \\ dW=nRT{\log }_n\frac{V_2}{V_1} \\ dW=nRT{\log }_{e}2 \\ dU=-nRT{\log }_{e}2 \end{gathered}$$