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.
