The molecules in a gas move about in all directions at a high speed.

Assertion : The rms velocity and most probable speeds of the molecules in a gas are same. The Maxwell distribution curve for the speed of the molecules in a gas is symmetrical.

The rms speed of a gas molecule is

(a) What is the average translational kinetic energy of a molecule of an ideal gas at temperature of 276@ C ? (a) What is the total random translational kinetic energy of the molecules in one mole of this gas ? ( c) What is the rms speed of oxygen molecules at this temperature ?

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

The average speed of all the molecules in a gas at a given instant is not zero, whereas the average velocity of all the molecules is xero. Explain why ?

Assertion: In case of collision of gas molecules in a given amount of gas, total kinetic energy is conserved. Reason: All collisions of the gas molecules in a given amount of gas are elastic.

The mean square speed of the molecules of a gas at absolute temperature T is proportional to

Root mean square speed of a gas is 5 ms^(-1) If some molecules out of 10 molecules in all are moving with 7ms^(-1) and rest all the molecules moving with 3 m sec^(-1) then number of molecules moving with higher speed is ____________.

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 molecule of which gas have highest speed ?