Three moles of an ideal gas (C_p = 7/2 R)at pressure P_A and temperature T_Ais isothermally expanded to twice its initial volume. It is then compressed at constant pressure to its original volume. Finally the gas is heated at constant volume to its original pressure P_A . The correct P-V and/or P-T diagrams indicating the process are

Three moles of an ideal gas (C_p = 7/2 R)at pressure P_A and temperatu

1.	Three moles of an ideal gas (C_p = 7/2 R)at pressure P_A and temperature T_Ais isothermally expanded to twice its initial volume. It is then compressed at constant pressure to its original volume. Finally the gas is heated at constant volume to its original pressure P_A . The correct P-V and/or P-T diagrams indicating the process are
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