20. Which one of the following gases has the lowest value of Henry’s law constant
a. N2
b. He
c. H2
d. CO2
e. O2
Ans. d
Explanation : As the solubility increases value of Henry’s law constant decreases. Since CO2 is most soluble in water among the given set of gases. Therefore CO2 has the lowest value of Henry’s law constant.
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dm-3 sucrose solution at 20 ° C (molar gas constant, R = 8.314 JK -1 mol -1 ; 1 dm-3 = 0.001 m3 ) a. 4870 Pa b. 4.87 Pa c. 0.00487 Pa d. 0.33 Pa Ans. a (17)
