0.5 m of air at TI = 67 °C, Pi = 700 kPa undergoes a polytropic expansion to a final %3D pressure of 350 kPa. The process follows pV3= constant and the work done by the air is 175 kJ. Assuming ideal gas behavior for the air, and neglecting kinetic and potential energy effects, determine: (a) the final temperature, in °C. emo (b) the heat transfer, in kJ. Air

Three-tenths kmol of carbon monoxide (CO) in a piston- cylinder assembly undergoes a process from p1 = 150 kPa, T1 = 300 K to p2 = 500 kPa, T2 = 470 K. For the process, W = -300 kJ. Employing the ideal gas model, determine: (a) the heat transfer, in kJ. (b) the change in entropy, in kJ/K.

This question requires the use of the Thermodynamic Property Tables supplied asadditional material.In addition, for steam, the specific ideal gas constant = 461.5 J/kg KA closed system is comprised of pure water substance initially at a temperature of 500 C and a pressure of 20 MPa (state 1).The system undergoes an isochoric process whereby its pressure drops to 0.1 Mpa (state 2). (d) For state 1 evaluate the specific volume assuming the steam behaves as an ideal gas and comment on your result.