
Concept explainers
Interpretation: Partial pressure is the pressure that each gas would exert if present alone in a vessel.
Concept Introduction: The total pressure of a mixture of gases that do not react chemically is the sum of the partial pressure of the component gases. This is known as Dalton’s law of partial pressure.

Answer to Problem 33A
Partial pressure of
Partial pressure of
Total pressure of gases
Explanation of Solution
For calculating partial pressure of component gas and the total pressure, the Dalton’s law partial pressure is used.
According to this law
For calculating partial pressure of
From Ideal gas equation,
No. of moles of He =
Or,
For calculating partial pressure of
Putting the values.
For calculating Partial pressure of He,
Partial pressure of
Partial pressure of
Total pressure of gases
Chapter 13 Solutions
World of Chemistry
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