Air enters a compressor insulated against heat transfer at a temperature of $37$ and a pressure of $105$kPa, and at a pressure of $610$ kPa and

It rises at $287.$ Neglecting the kinetic and potential energy exchange, and at the same time

taking into account that it changes with temperature;

a$)$ The isanthropic efficiency of the compressor,

b$)$ Find the outlet temperature of the air in case the compression is reversible.