Which of the following is / are correct ?

Engineering

Chemistry

Gas Laws and Graphical Representation

Kinetic Theory of Gases KTG

Liquefaction and Critical Temperature Pressure and Volume

Question

Which of the following is / are correct ?

For a given amount of gas in a vessel of constant volume, as pressure increases mean free path decreases

At critical temperature and pressure, there is no interface between the liquid and gaseous states.

For a given sample of gas in a fixed volume vessel as temperature increases collision frequency increases.

At Boyle's temperature, real gases follows Boyle's law at any pressure

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(A) $Z_{11} = \frac{1}{\sqrt{2}} {πσ}^{2} \bar{u} {(\frac{N}{V})}^{2} = \frac{1}{\sqrt{2}} {πσ}^{2} (\sqrt{\frac{8 RT}{πM}}) {(\frac{N}{V})}^{2}$

Here, $(\frac{N}{V})$ is fixed $∴ Z_{11} α \sqrt{T}$

(B) $λ = \frac{1}{\sqrt{2} {πσ}^{2} (\frac{N}{V})};$

Here $(\frac{N}{V})$ is constant

$∴ λ$ is constant irrespective of pressure change.

(D) Theory based