Problem
Consider 2-mol of ideal gas He in a piston chamber where the initial volume is 6L and the initial pressure is 5 atm. Assume that the piston is moving due to expansion of He to a final volume of 10L.
1. Assume the precess is isothermal and against a constant exernal pressure 1 atm.
Calculate final P, T and Q, W and the change of U, H, S
2. Assume the process is reversible and isothermal
Calculate final P, T and Q, W and the change of U, H, S
3. Assume the process is reversible and adiabatic
Calculate final P, T and Q, W and the change of U, H, S.