Practice question
Question
A solution of a gas in water has a mole fraction of 0.02 at 5 bar pressure. If the Henry’s law constant decreases by 20% due to a temperature change, what is the new partial pressure?
Explanation
Initial: 5 = KH · 0.02 , KH = 250 bar . New KH = 250 × 0.8 = 200 bar . New p = 200 × 0.02 = 4 bar .
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