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

1. (V – b)
2. (RT)⁻¹
3. (p + a / v²)
4. RT

Correct answer: (p + a / v²)

Solution

In van der Waals' equation, the term (p + a/v²) corrects for the intermolecular forces by adding a pressure correction to account for attractive forces between gas molecules.

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