申論題

1.A Carnot cycle uses 1 inol of an ideal gas for which Cv = 25 J K^-1 mol^-1, as the working substance and operalcs from a most compressed state of a 10-bar pressure and 600 K. It expands isolhcrmally to a pressure of 1 bar and tlicn adiabatically readies a most expended state al a temperature of 300 K. (20%)

(c) plot the Carnot cycic on a graph ofP versus V，