Question: = Air undergoes a polytropic process in a piston-cylinder assembly from p1 = 1 bar, T1 = 295 K to p2 = 7 bar. The

= Air undergoes a polytropic process in a piston-cylinder assembly from

= Air undergoes a polytropic process in a piston-cylinder assembly from p1 = 1 bar, T1 = 295 K to p2 = 7 bar. The air is modeled as an ideal gas and kinetic and potential energy effects are negligible. For a polytropic exponent of 1.2, determine the work and heat transfer, each in kJ per kg of air, (1) assuming constant Cy evaluated at 300 K. [Cv (2) assuming variable specific heats

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