Solve the below problem:
Q: A rigid tank contains 0.5 kmol of Ar and 2 kmol of N2 at 250 kPa and 280 K. The mixture is now heated to 400 K. Determine the volume of the tank and the final pressure of the mixture. You must solve the problem in a step by step. You should include all the units which are needed to complete the given problem.Your calculation and steps should be clear and understandable.