KH value for Ar(g), CO2(g),

Question:

KH value for Ar(g), CO2(g), HCHO (g) and CH4(g) are 40.39, 1.67, 1.83×10–5

and 0.413 respectively. Arrange these gases in the order of their increasing solubility.

(i) HCHO < CH4< CO2 < Ar

(ii) HCHO < CO2< CH4< Ar

(iii) Ar < CO2< CH4< HCHO

(iv) Ar < CH4 < CO2 < HCHO

Solution:

Option (iii) Ar < CO2< CH4< HCHO is the answer.

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