States of Matter - Result Question 34

####34. In van der Waals’ equation of state for a non-ideal gas, the term that accounts for intermolecular forces is

(1988, 1M)

(a) (V−b)

(b) RT

(c) (p+aV2)

(d) (RT)−1

Show Answer

Solution:

  1. In van der Waals’ equation of state

(p+aV2)(V−b)=RT

(For 1 mole)

The first factor (p+a/V2) correct for intermolecular force while the second term (V−b) correct for molecular volume.

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