Air undergoes a polytropic process in a piston-cylinder assembly from p₁ = 1 bar, T₁ = 295 K to p2 = 3 bar. The air is modeled as an ideal gas and kinetic and potential energy effects are negligible. For a polytropic exponent of 1.8, determine the work and heat transfer, each in kJ per kg of air, (1) assuming constant c, evaluated at 300 K. (2) assuming variable specific heats. *Part A Your answer is correct. Determine the work for the process, in kJ per kg of air. W/m =-66.7 kJ/kg Answer *1: the tolerance is +/-2% *Part B Your answer is correct. Determine the heat transfer, in kJ per kg air, assuming constant c, evaluated at 300 K. Q/m = 166.76 kJ/kg Answer *1: the absolute tolerance is +/-2 *Part C Attempts: 2 of 3 used Attempts: 1 of 3 used