Which of the following can be most readily liquefied?
(Given: value of 'a' for NH₃ :4.17,CO₂ = 3.59,SO₂ = 6.71, Cl₂= 6.49)

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NH₃

Cl₂

SO₂

CO₂

answer is C.

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Detailed Solution

Liquification $\infty$ a

The van der Waals constant a shows the force of attraction between two molecules. Hence, the higher the value of a, the higher the attraction. Therefore, the gas will be readily liquefied. Therefore, SO₂ will be readily liquified.

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