A Guide to Physics Problems. Part 2. Thermodynamics, Statistical Physics, and Quantum Mechanics

126 SOLUTIONS

we have

Substituting for and byputting(S.4.32.4) into (S.4.32.1)yields

The efficiency isthen

4.33 Diesel Cycle (Stony Brook)

We calculate theefficiency as in Problem 4.32. The workWin

the cycle (seeFigureS.4.33) is

where we haveagain used the ideal gas law and
The heat absorbed by the gasduring is

The efficiency is

Using the equation for the adiabatsgives