1. Assume you have 1mole Ne gas at 25C and 1L held in a cylinder with a locking piston. The locks are released and the gas expands against an external pressure of 1.4atm. Calculate q, w, ?U, ?H, and ?S
a. If the expansion occurs isothermally and reversibly.
b. If the expansion occurs adiabatically and irreversibly.
If the expansion occurs adiabatically and reversibly. Show the calculation of ?S such that you numerically prove its value