According to kinetic...| KTG & THERMODYNAMICS| JEE-Main 2022

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JEE MAIN 2022

27-06-2022 S2

Question

According to kinetic theory of gases,
A. The motion of the gas molecules freezes at 0ºC
B. The mean free path of gas molecules decreases if the density of molecules is increased.
C. The mean free path of gas molecules increases if temperature is increased keeping pressure constant.
D. Average kinetic energy per molecule per degree of freedom is $\frac{3}{2} \mathrm{k}_{\mathrm{B}} \mathrm{T}$ (for monoatomic gases)
Choose the most appropriate answer from the options given below

Select the correct option:

A

A and C only

B

B and C only

C

A and B only

D

C and D only

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution

$\lambda=\frac{\mathrm{kT}}{\sqrt{2} \pi \mathrm{~d}^2 \mathrm{P}}$

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