Statement 1: A real gas with significant attractive forces exerts a lower pressure than an ideal gas under the same conditions of V, T and n.
Statement 2: Molecular attractions pull the wall-approaching molecules back toward the bulk, reducing the momentum transferred to the walls per collision.

Question

Statement 1: A real gas with significant attractive forces exerts a lower pressure than an ideal gas under the same conditions of V, T and n.

Statement 2: Molecular attractions pull the wall-approaching molecules back toward the bulk, reducing the momentum transferred to the walls per collision.

TestHub · Accepted Answer

Statement I is correct — this is the pressure correction term, P ideal = P real + an²/V². Statement II is correct and is exactly the mechanism: attraction toward the bulk lessens the impact on the walls, lowering the measured pressure. II explains I. Ans: (a).

Chemistry - Real Gas Question with Solution | TestHub

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