The pressure exerted by each individual gas in a mixture is called its:
AVapour pressure
BCritical pressure
CPartial pressure
DTotal pressure
Answer & Solution
Correct answer: C. Partial pressure
1. A mixture's gases each push independently unless they react.
2. Unless they chemically react with each other, the individual gases in a mixture do not affect each other's pressure.
3. The pressure exerted by each individual gas in a mixture is called its partial pressure.
4. Adding those partial pressures gives the total pressure of the mixture.
_Source: OpenStax Chemistry 2e (CC BY 4.0), Ch 9 'Gases', sections 9.1-9.6_
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