All Problems

Second law of thermodynamics, entropy

Problem 2.118

Find the efficiency of a cycle consisting of two isobaric and two adiabatic lines, if the pressure changes \(n\) times within the cycle The working substance is an ideal gas whose adiabatic exponent is equal to \(\gamma\).

Reveal Answer
η=1n(11/γ)\eta=1-n^{-(1-1 / \gamma)}