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Problem 2: A sealed, insulated container is divided into 2 sections by a very thin membrane. Section A contains 8.0 g of helium at 300 K, and section B contains 0.5 moles of an unknown gas at 400 K. When they reach thermal equilibrium, the unknown gas is at 329.41 K. Assume ideal gas behavior and no vibration for both gases. (a). What are the CV and 0,9 of the unknown gas? (b). How many degrees of freedom does the unknown gas molecule have? (c). What is the change in the total translational kinetic energy of the unknown gas molecules