2. Air at 100 kPa and 300 K with a flow rate of 3500 L/min flows into a compressor and the pressure is raised to 1500 kPa. Find the work and heat transfer. Air is an ideal gas but the heat capacity is NOT constant. (30% (1). Isothermal process (2). Isentropic process (3). Polytropic process with n=1.3)