Gaseous State T...

The ratio of root mean square velocity to average velocity of a gas molecule at a particular temperature is:

The temperature at which a real gas obeys the ideal gas laws over a wide range of pressure is:

Equal weights of methane and oxygen and mixed in an empty container at 25°C. The fraction of the total pressure exerted by oxygen is:

Helium atom is two times heavier than a hydrogen molecule. At 298 K, the average kinetic energy of a helium atom is:

No cooling occurs, when an ideal gas undergoes unrestrained expansion, because the molecules:

A liquid is in equilibrium with its vapour at it’s boiling point. On the average, the molecules in the two phases have equal:

Rate of diffusion of a gas is:

The average velocity of an ideal gas molecule  at 27°C is 0.3 m/s. The average velocity at 927°C will be

In van der Waals’ equation of state for a non-ideal gas, the term that accounts for intermolecular forces is:

A bottle of dry ammonia and a bottle of dry hydrogen chloride connected through a long tube are opened simultaneously at both ends the white ammonium chloride ring first formed will be: