Question

Which of the following is a corrected equation of ideal gas equation?

(a) (P – an^2V^2)(V – nb) = nRT

(b) (P – an^2/V^2)(V + nb) = nRT

(c) (P + an^2/V^2)(V – nb) = nRT

(d) (P – an^2/V^2)(V – nb) = nRT

I had been asked this question in final exam.

The question is from States of Matter topic in section States of Matter of Chemistry – Class 11

Answer 1

The correct answer is (d) (P – an^2/V^2)(V – nb) = nRT

To explain I would say: (P – an^2/V^2)(V – nb) = nRT; where p is pressure, a is the magnitude of intermolecular attractive forces within a gas, n is the number of moles, v is volume, b is a van der Waal constant, R is the universal gas constant and T is temperature.