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#7 | Molecular Speeds & Kinetic Theory of Gases
(Chemistry) > States of Matter
Related Practice Questions :

The mean free path ($\mathrm{\lambda }$) of a gas sample is given by:

(a) $\lambda =\sqrt{2}\pi {\sigma }^{2}N$                                (b) $\lambda =1/\sqrt{2}\pi {\sigma }^{2}N$

(c) $\lambda =\sqrt{2}\pi \mu {\sigma }^{2}N$                               (d) none of these

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Difficulty Level:

When is the deviation more in the behaviour of a gas from the ideal gas equation pV=nRT?

(a) AT high temperature and low pressure

(b) At low temperature and high pressure

(c) At high temperature and high pressure

(d) At low temperature and low pressure

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Difficulty Level:

With increase of pressure, the mean free path:

(a) decreases                             (b) increases

(c) becomes zero                        (d) remains same

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Internal energy and pressure of a gas per unit volume are related as

(a) p= $\frac{2}{3}$E                         (b) p = $\frac{3}{2}$E

(c) p=$\frac{1}{2}$E                          (d) p = 2E

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If a gas expands at constant temperature, it indicates that

(a) kinetic energy of molecules decreases

(b) pressure of the gas increases

(c) kinetic energy of molecules remains the same

(d) number of the molecules of gas increases