The molecules of a gas `A` travel four times faster than the molecules of gas `B` at same temperature. The ratio of molecular weights `(M_(A)//M_(B))` is

When 4 g of an ideal gas A is introduced into an evacuated flask kept at 25^(@)C , the pressure is found to be one atmosphere. If 6 g of another ideal gas B is then added to the same flask, the pressure becomes 2 atm at same temperature. The ratio of molecular weights (M_(A) : M_(B)) of the two gases would be

The root mean square velocity of a gas molecule at any temperature T K of a gas molecule of molecular weight M is

A molecule of gas is struck by another molecule of the same gas, the first molecule shows:

Two separate bulbs contain ideal gas A and B . The density of a gas A is twice that of a gas B . The molecular mass of A is half that of gas B . The two gases are at the same temperature. The ratio of the pressure of A to that gas B is

The r.m.s. velocity of a gas at a certain temperature is sqrt(2) times than that of the oxygen molecules at that temperature. The gas can be

The density of a gas A is thrice that of a gas B at the same temperature. The molecular weight of gas B is twice that of A. What will be the ratio of the pressure acting on B and A?

The average velocity of molecules of a gas of molecilar weight (M) at temperature (T) is