Describe dalton law of partial pressure, Chemistry

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Q. Describe Dalton Law of Partial Pressure?

Ans.

According to the Kinetic Molecular Theory, the pressure-volume- temperature relationship is the same for all gases. This is a key assumption in Dalton's Law of Partial Pressures. This law states that:

  • The total pressure exerted by a mixture of gases at a constant volume and temperature is the sum of the partial pressures of the individual gases in the mixture.

In symbols, Dalton's law of partial pressures can be written for a mixture of gases as

  • PT = PA + PB + PC + ...

(PT is the total pressure of the mixture. PA, PB, PC, etc., are the partial pressures of the individual gases in the mixture.)


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