Question

a fluid undergoes a reversible adiabatic compression from pressure 1 mpa bar & volume 0.m3, according to the law pv1.3=constant. determine the entropy

Answer 1

Adiabatic process is a process in which a thermodynamic system does not exchange heat or substance with its surroundings. Hence, in the given adiabatic compression, the heat transfer $Q$ is equal to zero. Thus, a change in entropy is also equal to zero, $\Delta$S = 0.