List of top Chemistry Questions on Van Der Waals equation

Molar volume ($ V_m $) of a van der Waals gas can be calculated by expressing the van der Waals equation as a cubic equation with $ V_m $ as the variable. The ratio (in mol dm$^{-3}$) of the coefficient of $ V_m^2 $ to the coefficient of $ V_m $ for a gas having van der Waals constants $ a = 6.0 \, \text{dm}^6 \, \text{atm mol}^{-2} $ and $ b = 0.060 \, \text{dm}^3 \, \text{mol}^{-1} $ at 300 K and 300 atm is ____. Use: Universal gas constant $ R = 0.082 \, \text{dm}^3 \, \text{atm mol}^{-1} \, \text{K}^{-1} $

Arrange the following gases in increasing order of van der Waals constant 'a'
A. Ar
B. CH4
C. H₂O
D. C6H6
Choose the correct option from the following.

Which of the following statemnt is incorect for physisorption?

At low pressure, the van der Waal's equation is reduced to

If $V$ is the volume of one molecule of gas under given conditions, the van der Waal?s constant $b$ is

Given van der Waals constant for NH₃, H₂, O₂ and CO₂ are respectively 4.17, 0.244, 1.36 and 3.59, which one of the following gases is most easily liquefied ?

The compressibility factor $(Z)$ of one mole of a van der Waals gas of negligible $�a�$ value is

The compressibility factor for a real gas at high pressure is :

: At high pressure, the compression factor $Z$ is $\left(1+\frac{P b}{R T}\right)$. : At high pressure van der Waals' equation is modified as $P(V-b)=R T$.

At high pressure van der Waals equation becomes :

What is the pressure of 2 mole of $NH_3$ at 27$^\circ$C when its volume is 5 lit. in van der Waals equation (a = 4.17, b = 0 .03711)

The compressibility of a gas is less than unity at STP. Therefore,

The constant $'a'$ in van der Wall's equation is maximum in :

The compressibility factor of an ideal gas is

The inversion temperature for a van der Waals gas is given by:

The value of van derWaals' constant a for the gases $O_2, N_2$, $NH_3$ and $ CH_4$ are 1.360, 1.390,4.170 and $2.253L^2$ atm $mol^{-2}$ respectively. The gas which can most easily be liquefied is

The compressibility factor, Z for $H_2$ and He is