(Answered) A rigid vessel 10ft3 in volume contains saturated-vapor

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A rigid vessel 10(ft)3 in volume contains saturated-vapor steam at 75(psia). Heat exchange with a single external heat reservoir at 60(ºF) reduces the temperature of the contents of the vessel to 60(ºF). Determine ΔStotal. What is the irreversible feature of this process?

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