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Gases Real Gases and van der Waals Equation

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Approximate van der Waals constant a values are: O₂ = 1.36, N₂ = 1.39, NH₃ = 4.17, CH₄ = 2.25. Which gas has the strongest intermolecular attraction and can be liquefied most easily?

Verified Answer & Explanation⌄

Correct Answer: C) NH₃

Concept Explanation

The van der Waals constant a measures intermolecular attraction. A larger a indicates stronger attractive forces. NH₃ has the largest value.

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