Solutions Question 318

Question: Which one of the following gases has the lowest value of Henry’s law constan'

Options:

A) $ N_2 $

B) He

C) $ H_2 $

D) $ CO_2 $

Show Answer

Answer:

Correct Answer: D

Solution:

According to Henry’s law the mass of a gas dissolved per unit volume of solvent is proportional to the pressure of the gas at constant temperature m = Kp i.e. as the solubility increases, value of Henry’s law constant decreases. Since $ CO_2 $ is most soluble in water among the given set of gases. Therefore $ CO_2 $ has the lowest value of Henry’s law constant.



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