Two containers C1 and C2 of volumes V and 4V respevtively hold the same ideal gas and are connected by a thin horizontal tube of negligible volume with a valve which is initially closed. The initial pressures of the gas in C1 and C2 are P and 5P, respectively. Heat baths are employed to maintain the temperatures in the containers at 300 K and 400 K respectively. The valve is now opened. Select the correct statement:

Options

A. The gas will flow from the hot cointainer to the cold one and the process is irreversible
B. The gas will flow from one cointainer to the other till the number of moles in two containers are equal
C. A long time after the valve is opened, the pressure in both the containers will be 3P
D. A long time after the valve is opened, number of moles of gas in the hot container will be thrice that of the cold one