6. Consider the following twostep process. Thermal energy in the form of heat is allowed to ow out of an ideal gas at constant volume Va = Vb = 5.9 x 10'3 In3 so that its pressure drops from Pa = 2.0 x 105 N/rn2 to Pb = 1.2 X 105 N/mz. Then the gas expands at constant pressure until the temperature reaches its original value. The line joining a to 0 directly is an isotherm. If the internal energy of the gas at point a is 4130 J , how many degrees of freedom does the gas have? b. What do the degrees of freedom represent? (Be Specic) 0 Calculate the nal volume of the gas at c. (1. Calculate the total work done by the gas in the entire process. e Calculate the change in internal energy of the gas in the entire process. f How much thermal energy in the form of heat is added to the gas? g. The process joining a to 0 directly is isothermal. Calculate the total work done by the gas for this process