Question

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A tank of gas has partial pressures of nitrogen and oxygen equal to 1.61 atm and 4.34 atm, respectively.

What is the total pressure of the tank?

Answer 1

Considering the Dalton's law, the total pressure of the tank is 5.95 atm.

Dalton's law

The pressure exerted by a particular gas in a mixture is known as its partial pressure.

So, Dalton's law states that the total pressure of a gas mixture is equal to the sum of the pressures that each gas would exert if it were alone:

$P_{T} =P_{1} + P_{2} + ... + P_{n}$

where n is the amount of gases present in the mixture.

This relationship is due to the assumption that there are no attractive forces between the gases.

Total pressure of the tank

A tank of gas has partial pressures of nitrogen and oxygen equal to 1.61 atm and 4.34 atm, respectively.

The total pressure of the tank is calculated as:

$P_{T} =P_{nitrogen} + P_{oxygen}$

So, replacing the respective values:

$P_{T} =1.61 atm+ 4.34 atm$

Solving:

$P_{T} =5.95 atm$

Finally, the total pressure of the tank is 5.95 atm.

Learn more about Dalton's law:

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