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  • According to kinetic theory of gases, A. The motion of the gas molecules freezes at <img alt="0^{\circ} \mathrm{C}" src="https://entrancecorner.oncodecogs.com/gif.latex?0%5E

According to kinetic theory of gases,
A. The motion of the gas molecules freezes at 0^{\circ} \mathrm{C}.
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 kinctic energy per molecule per degree of freedom is \mathrm{\frac{3}{2} k_{B} T} (for monoatomic gases).
Choose the most appropriate answer from the options given below:

Option: 1

\mathrm{A} and \mathrm{C} only


Option: 2

\mathrm{B} and \mathrm{C} only


Option: 3

\mathrm{A} and \mathrm{B} only


Option: 4

\mathrm{C} and \mathrm{D} only


Answers (1)

best_answer

Mean free path, \mathrm{\lambda= \frac{kT}{\sqrt{2}\pi d^{2} \rho}}

Mean free path is directly proportional to temperature \mathrm{(T) } and inversely proportional to the density\mathrm{ (\rho) }

The correct answer is (2)

Posted by

avinash.dongre

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