Three moles of an ideal gas (CP=72R) at pressure, PA and temperature TA is isothermally expanded to twice its initial volume. It is then compressed at constant pressure to its original volume. Finally gas is compressed at constant volume to its original pressure PA. The correct P−V and P−T diagrams for the complete process are

Three moles of an ideal gas (CP=72R) at pressure, PA and temperature T

1.	Three moles of an ideal gas (CP=72R) at pressure, PA and temperature TA is isothermally expanded to twice its initial volume. It is then compressed at constant pressure to its original volume. Finally gas is compressed at constant volume to its original pressure PA. The correct P−V and P−T diagrams for the complete process are
Answer» Three moles of an ideal gas ( $C_{P} = \frac{7}{2} R$ ) at pressure, $P_{A}$ and temperature $T_{A}$ is isothermally expanded to twice its initial volume. It is then compressed at constant pressure to its original volume. Finally gas is compressed at constant volume to its original pressure $P_{A}$ . The correct $P - V$ and $P - T$ diagrams for the complete process are

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