Under the identical conditions of temperature, the denisty of a gas `X` is two times that of gas `Y` while molecular mass of gas `Y` is three times that of `X`. The ratio of pressure of `X` and `Y` will be:

The molecules of a gas A travel four times faster than the molecules of gas B at the same temperature. The ratio of molecular weight (M_A // M_B) will be

A closed vessel contains a mixture of two diatomic gases A and B . Molar mass of A is 16 times that of B and mass of gas A contained in the vessel is 2 times that of B . Which of the following statements are correct ?

Consider two containers A and B containing identical gases at the same pressure, volume and temperature. The gas in container A is compressed to half of its original volume isothermally while the gas in container B is compressed to half of its original value adiabatically. The ratio of final pressure of gas in B to that of gas in A is

A vessel contains 1 mole of O_(2) gas (molar mass 32 ) at a temperature T . The pressure of the gas is P . An identical vessel containing one mole of He gas (molar mass 4 ) at a temperature 2T has a pressure of xP . Find the value of x.

During an adiabatic process, the pressure of gas is found to be proportional to the cube of its absolute temperature. The ratio of (C_(p)//C_(v)) for gas is :

At which temperature, velocity of sound in H_(2) gas will be same as that in O_(2) at 1200^(@)C temperature ? Density of O, is 16 times density of H_(2).