Assertion: All molecules in a gas are moving with same speed.
Reason: Speed of molecules in a gas follows Maxwell's distribution law.

All the molecules in a given sample of gas move with same speed.

All the molecules in a given sample of gas move with same speed.

Assertion: All molecules of an ideal gas more with the same speed. Reason: There is no attraction between the molecules in an ideal gas.

Assertion: All molecules of an ideal gas more with the same speed. Reason: There is no attraction between the molecules in an ideal gas.

The rms speed of a gas molecule is

The rms speed of a gas molecule is

(A): The root mean square and most probable speeds of the molecules in a gas are the same. (R): The Maxwell distribution for the speed of the molecules in a gas is a symmetrical.