A thin elastic balloon contains 30 g of nitrogen (ideal gas, M = 28, k =1.4) at 200 K and 0.4 MPa. The balloon exerts on its contents a pressure difference that is proportional to its volume. The...

A thin elastic balloon contains 30 g of nitrogen (ideal gas, M = 28, k =1.4) at 200 K and 0.4 MPa. The balloon exerts on its contents a pressure difference that is proportional to its volume. The pressure of the surroundings outside the balloon is 1 bar and the temperature is 300 K. The nitrogen undergoes a heat interaction with a reservoir at 400 K until mutual equilibrium is attained. Find a. The final pressure of the nitrogen. b. The work and heat interactions during the process. c. The change in availability of everything involved in the process.