Air in a piston/cylinder is at 750 °C, 4 MPa and expands in a polytropic process with n = 1.4 to a volume 3 times larger

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Air In A Piston Cylinder Is At 750 C 4 Mpa And Expands In A Polytropic Process With N 1 4 To A Volume 3 Times Larger 1 (77.39 KiB) Viewed 16 times

Air in a piston/cylinder is at 750 °C, 4 MPa and expands in a polytropic process with n = 1.4 to a volume 3 times larger. AIR a- Calculate the pressure at state 2,P2 = kPa (5pts) b- Calculate the temperature at state 2, T2 = °C (5pts) C- Calculate the specific work for the process, w= kJ/kg (5pts) d-Using an average Cv = 0.834 kJ/kg.K for air, calculate the specific heat for the process, a = kJ/kg (5pts) . Do not forget to enter values into the boxes above • Be careful with the units • When you enter the values use DOT as decimal separator. For example: 0.10 or 5.75