Two monatomic gases, helium and neon, are mixed and in thermal equilibrium at te

Question

Two monatomic gases, helium and neon, are mixed and in thermal equilibrium at temperature T. Therefore, The helium atoms have the same average translational kinetic energy as the neon atoms. Each atom has a different average translational kinetic energy. There is a difference of 3/2 kT in the average translational kinetic energy between helium atoms and neon atoms. Briefly explain your answer to the previous question. If the molar mass of helium is 4.0 g/mol and the molar mass of neon is 20.2 g/mol, then All the atoms have exactly the same velocity. All the atoms have the same average speed. The average speed of the helium atoms is greater than the average speed of the neon atoms. The average speed of the neon atoms is greater than the average speed of the helium atoms. The atoms diffuse from high temperature to low temperature.

Explanation / Answer

The formula for average translational kinetic energy= 3/2 kT

where k= boltzmann constant

T = temperature

As this does not depend on type of gas, so average translational kinetic energy is same for both helium and neon.

so for q1. a is correct option

for q2. Refer to the above explanation

for q3. If mass is more, then speed is less, so option c is correct answer.

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