Question

1kg of a fluid is compressed reversibly according to a law PV=0.25 where p is in bar and v is in m^3/kg. The final volume is 1/4 of the initial volume , calculate the workdone on the fluid and sketch the process of p-v diagram

Answer 1

$A=p\Delta V=\frac 34pV=\frac 34\cdot \frac 14\cdot 10^5=18.75~kJ.$