Van der Waals Equation

Author:Embibe Experts
JEE Main/Advance
IMPORTANT

Important Questions on Van der Waals Equation

HARD
IMPORTANT

Consider the following statements:

The coefficient B in the virile equation on state

PVm=RT1+BVm+CVm2+..

a : is independent of temperature

b : is equal to zero at boyle temperature

c : has the dimension of molar volume

Which of the above statements are correct.

HARD
IMPORTANT

The van der Waal's constant ' b ' for gas is 0.0329dm3 mol-1. The radius of one molecule is :-

MEDIUM
IMPORTANT

A vander Waal's equation for real gas is cubic in V (Volume of gas). Which of the following statement is true about Vander Waal's equation of state of real gas.

MEDIUM
IMPORTANT

Which of the following are correct statements:

EASY
IMPORTANT

The critical constant for water are 401 K,218 atm and $0.0566$ litre mol-1. Calculate a& b.

EASY
IMPORTANT

Calculate the radius of He atoms if its Vander Waal's constant ' b ' is 24 ml mol-1 : (Note ml= cubic centimeter)

MEDIUM
IMPORTANT

In van der Waal's equation of state for a non-ideal gas, the term that accounts for intermolecular forces is

EASY
IMPORTANT

NH3 gas is liquefied more easily than N2. Hence:

EASY
IMPORTANT

The correct order of normal boiling points of O2, N2, NH3 and CH4, for whom the values of Van der Waals constant, a'', are 1.360, 1.390, 4.170 and 2.253 L2. atm. mol-2, respectively, is:

EASY
IMPORTANT

Compressibility factor for H2 behaving as real gas is:

MEDIUM
IMPORTANT

For the non-zero value of the force of attraction between gas molecules, gas equation will be:

MEDIUM
IMPORTANT

At a moderate pressure, the Van der Waals' equation is written as:

P+aV2V=RT

The compressibility factor is equal to

HARD
IMPORTANT

If a real gas following equation P(V - nb) = nRT, at low pressure then, find the intercept and slope of graph between dp v/s P are respectively.