Question

In a mixture of N2 and O2 gases at thermal

equilibirum, the average speed of the N2

molecules is the same as that of the O2

molecules.​

Answer 1

Answer:In a gas molecule, the average velocity of the gasses particle becomes zero due to the random moment of the gas-particle. As the velocity is a vector quantity and due to random movement, particles may move in the opposite direction by which all particles canceled out, and the average velocity becomes zero. Therefore the average is calculated by taking the root of average velocity. The mathematical expression for calculating velocity is

√

3

R

T

M

m

Here, R is gas constant, T is temperature and

M

m

is molar mass of the molecule.