Definition of Partial Pressure



The thermodynamic activity of the molecules of a gas is measured by a factor which is known as the partial pressure. The gases are able to get dissolved, diffused and they react with other molecules of the gases, not on the basis of their concentration but due to their partial pressure.

 


If the gases are present in the form of a mixture, then each one of it has a particular partial pressure. According to Dalton’s law, the total pressure that is being exerted by an ideal gas is equal to the sum of the partial pressures of the individual gases present in that mixture.


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