1.0 kg of air at 300 k and 100 kpa (state 1) is slowly compressed in a piston cylinder (closed system). the compression process is an isothermal process (t= constant) which is a special polytropic process with a polytropic index n i. the pressure of the air at the end of the compression process is 300 kpa (p2). assuming that air is an ideal gas with constant specific heats. a)- find the work transfer in this compression process b)- find the heat transfer in this compression process. ignoring the kinetic and potential energy changes. c)- find the isentropic efficiency of this compressor