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2. Under an external pressure of 1 atm, 2 mol of an ideal gas expanded from the initial state in which the volume was fixed with a pin to the next pin through an adiabatic irreversible process, and the final volume became 1.5 times the initial volume. If a monoatomic ideal gas is used and Cum = 3R/2, what is the AS of the system in this process?
2. Under an external pressure of 1 atm, 2 mol of an ideal gas expanded from the initial state in which the volume was fixed with a pin to the next pin through an adiabatic irreversible process, and the final volume became 1.5 times the initial volume. If a monoatomic ideal gas is used and Cum = 3R/2, what is the AS of the system in this process? P = 1 atm P = 1 atm |||| deste pin Tt, Vi, Pr D Ideal gas 0°C, 11.2L pin removed initial state final state Bonus problem: What is the change in entropy of the universe as a whole?

4. The figure below shows the ideal Carnot cycle operating with a monoatomic ideal gas of 1 mol. At this time, answer a) Heat absorbed at 400 K b) change in entropy of AB c) Gibbs energy change in CD d) How much heat must be absorbed to do 2 kJ of work? T=400K compan net work-800J T=300K