• 9. A tank contains argon at 600°C and 200 kPa gage. The argon is cooled in a process by heat transfer to the surroundings such that the argon reaches a final equilibrium state at 300 °C. 1).Determine the final gage pressure of the argon. Assume atmospheric pressure is 100 kPa 2).If the mass of argon in the tank is 3.2 kg, estimate the volume of the tank.(for Ar, R=0.2081 kJ/kgK)