Question: A piston/cylinder device operating in a cycle with steam as the working fluid executes the following steps: Saturated-vapor steam at 300(psia) is heated at

A piston/cylinder device operating in a cycle with steam as the working fluid executes the following steps:
• Saturated-vapor steam at 300(psia) is heated at constant pressure to 900(oF).
• It then expands, reversibly and adiabatically, to the initial temperature of 417.35(oF).
• Finally, the steam is compressed in a mechanically reversible, isothermal process to the initial state.
What is the thermal efficiency of the cycle?

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