Question

A piston cylinder containing steam at 700 kPa at 250 degrees celcius undergoes a constant pressure process until the quality is 70%. Determine: a). Work done b). Heat transferred c). Change in internal energy d). Change in enthalpy NOTE: - INDICATE THE PV and TS DIAGRAM - INDICATE THE INITIAL AND FINAL STATE OF THE SUBSTANCE

Ans. (a) -101.4 kJ/kg (b) -810 kJ/kg (c) -708.5 kJ/kg (d) -810 kJ/kg

Answer 1

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