consider the expansion of 1L of gas orginally at 9 atm pressure to 1 atm pressure. the T remains constant at 25*C. Defining the gas as the system, calculate the work done on the system when:
a) the P(ex) on the gas is suddenly decreased to 1 atm
b) the P(ex)on the gas is suddenly decrease to 4.5 atm, allowed to come to equilibrium and then the P(ex) is again suddenly decreased to 1 atm
c) the theoretical maximum work is achieved?