Question: If two adiabatic curves intersect on a PV diagram, a cycle could be completed by an isothermal path between the two adiabatic curves shown in

If two adiabatic curves intersect on a PV diagram, a cycle could be completed by an isothermal path between the two adiabatic curves shown in figure. Show that such a cycle could violate the second law of thermodynamics.

Adiabatic Isotherm Adiabatic

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