10 During an isothermal process at 88°F, the pressure on 8 lb of air drops from 80 psia to 5 psig. Determine: a. The non-flow and steady flow work. Ans. 421.2 Btu, 421.2 Btu b. The heat and change in internal energy and change in enthalpy. Ans. 421.2 Btu, 0, 0 C. The change in entropy. Ans. 0.7686 Btu/ R
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