Dalton's+Law.Bertino

=**Dalton's Law**=

Dalton's Law of partial pressure was found by John Dalton in 1801. It is related to the ideal gas law.

This law shows that the total pressure in the container is made up of all the singular partial pressures.

This law is represented as: P total= P1 + P2 + P3 + .... where: p total= the total pressures P1= partial pressure one P2=partial pressure two P3=partial pressure three and so on...

An example problem: If there is a 500 mm container with three substances in it and hydrogen gas takes up 260 mm of the pressure, and Oxygen takes up 55mm of the container, how much of the third pressure nitrogen will there be. All you have to do is enter the three numbers into their respective places of P1, P2, and Ptotal and you can calculate to find P3. 1)(500mm)=(20mm)+(55mm)+(P3mm) 2) isolate P3 by subtracting 315 from the total > P3=185mm 3) you can therefore find that nitrogen would take up 185mm of the pressure

This picture shows how by adding all of the partial pressures you can get the total pressure.

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