Two tanks with equal volume are connected with a joule-thompson valve. tank i contains anideal gas at 10 atm pressure and 300k while tank ii is empty (p = 0). the valve is opened slowlyso that gas can flow from tank i into tank ii. the valve is closed once the pressure in tank i hasreached 5 atm. a) what is the temperature of the gas in tank i when the pressure there is 5atm ? b) what is the temperature of the gas in tank ii when the pressure in tank i has reached 5 atm ? c) prove that this process is irreversible by calculating the total entropy change of the system.