State Henry's law. Calculate the solubility of {\CO}

CBSE Class 12 Chemistry 2020 Outside Delhi Set 1 Solved Paper

Question : 27

Total: 37

State Henry's law. Calculate the solubility of CO2 in water at 298K under 760‌mm‌Hg.
( KH for CO2 in water at 298K is 1.25×106‌mm‌Hg )

Solution:

Henry's law: The mass of a gas dissolved in a given volume of the liquid at a constant temperature depends upon the pressure which is applied.

KH‌ for ‌CO2=1.25×106‌mm‌Hg‌
xCO2‌=‌

‌ Partial pressure of ‌CO2

KH‌ for ‌CO2

=‌

760‌mm‌Hg

1.25×106‌mm‌Hg.

‌=608×10−6
Mole fraction represents the solubility of CO2 in water.

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