Two thermally insulated vessels are connected by a narrow tube fitted with a valve that is initially closed as shown in the figure below. One vessel...

Two thermally insulated vessels are connected by a narrow tube fitted with a valve that is initially closed as shown in the figure below. One vessel of volume V1 = 15.5 L, contains oxygen at a temperature of T1 = 280 K and a pressure of P1 = 1.80 atm. The other vessel of volume V2 = 22.5 L contains oxygen at a temperature of T2 = 450 K and a pressure of P2 = 2.30 atm. When the valve is opened, the gases in the two vessels mix and the temperature and pressure become uniform throughout.