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Question

Which of the following best describes the difficulty in breathing as one climbs to higher altitudes?

A
Henry’s law
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B
Raoult’s law
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C
Dalton's law
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D
Charle's law
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Solution

The correct option is A Henry’s law
Henry’s law states that the partial pressure of a gas in vapor phase varies directly with its mole fraction in the solution. At higher altitudes the partial pressure of O2 decreases hence the decrease in its concentration which causes difficulty in breathing.

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