owever, we can 2.13 An ideal gas expands reversibly and isothermally from 10 bar to 1 bar at 298.15 K. What are the values of (per mole, (b) per mole, (c) AU, and (d) AH? (e) The ideal gas expands isothermally against a constant pressure of 1 bar. How much work is done on the gas?