Pressure exerted by saturated water vapour is called aqueous tension. What correction term will you apply to the total pressure to obtain pressure of dry gas?
 

Compressibility factor, $\mathrm{Z}$, of a gas is given as $\mathrm{Z}=\frac{\mathrm{pV}}{\mathrm{nRT}}$. What is the value of $\mathrm{Z}$ for an ideal gas?

Compressibility factor, $\mathrm{Z}$, of a gas is given as $\mathrm{Z}=\frac{\mathrm{pV}}{\mathrm{nRT}}$. For real gas what will be the effect on value of $\mathrm{Z}$ above Boyle’s temperature?
 

For real gases the relation between $\mathrm{P}, \mathrm{V}$ and $\mathrm{T}$ is given by van der Waals equation:

$\mathrm{P}+\frac{{\mathrm{an}}^2}{{\mathrm{v}}^2}(\mathrm{V}-\mathrm{nb})=\mathrm{nRT}$

where ‘$\mathrm{a}$’ and ‘$\mathrm{b}$’ are van der Waals constants, ‘$\mathrm{nb}$’ Is approximately equal to the total volume of the molecules of a gas.
‘$\mathrm{a}$’ Is the measure of the magnitude of intermolecular attraction.

Arrange the following gases in the Increasing order of ‘$\mathrm{b}$’. Give reason.

${\mathrm{O}}_2, {\mathrm{CO}}_2, {\mathrm{H}}_2, \mathrm{He}$
 

For real gases the relation between $\mathrm{P}, \mathrm{V}$ and $\mathrm{T}$ is given by van der Waals equation:

$\mathrm{P}+\frac{{\mathrm{an}}^2}{{\mathrm{v}}^2}(\mathrm{V}-\mathrm{nb})=\mathrm{nRT}$

where ‘$\mathrm{a}$’ and ‘$\mathrm{b}$’ are van der Waals constants, ‘$\mathrm{nb}$’ Is approximately equal to the total volume of the molecules of a gas.
‘$\mathrm{a}$’ Is the measure of the magnitude of intermolecular attraction.

Arrange the following gases in the decreasing order of magnitude of ‘$\mathrm{a}$’. Give reason.
${\mathrm{CH}}_4, {\mathrm{O}}_2, {\mathrm{H}}_2$