(Solved): b. A polytropic process (n)=(1.2) compresses air from 0.25m^(3) at 20\deg C and pressure of 120 kPa ...

b. A polytropic process

)

(

compresses air from

at

and pressure of 120

to

. It is then expanded at a constant temperature to its original volume. Sketch the P-V diagram Determine the: Mass of air Pressure at the end of the compression Final Temperature Net work done Net heat transfer