List of top Fundamentals of Biological Engineering Questions asked in GATE BT

Two reactors of volumes 5 L and 10 L contain an ideal gas at 9 atm and 6 atm. When the valve is opened, the final equilibrium pressure (atm) of the system is \(\underline{\hspace{1cm}}\).
Under standard temperature (T) and pressure (P) conditions, 128 g of an ideal gas molecule A occupies a volume of 1 L. The gas molecule A obeys the relationship $RT = 0.25PV$. R and V are universal gas constant and ideal gas volume, respectively. The molecule A is: