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What is the total entropy change to expand water at 30 psia and 70 percent quality to 10 psia in a closed system undergoing

What is the total entropy change to expand water at 30 psia and 70 percent quality to 10 psia in a closed system undergoing an isothermal, reversible process while exchanging heat with an energy reservoir at 300F? Use data from tables. The total entropy change is Btu/ Ibm-R.

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