Partial pressure calculator

Calculate partial pressures with your own figures.

Your numbers

Use the units shown. Results update as you change valid inputs.

Use partial pressures to compare changes to your inputs. The method and limits below explain the scope.

Examples

Examples

Try the starting example

Total pressure
100
Mole fractions
0.2,0.8
Partial pressures
20, 80

Try another scenario

Total pressure
110.00000000000001
Mole fractions
0.2,0.8
Partial pressures
22.000000000000004, 88.00000000000001
Calculation method

Calculation method

Partial pressures

For each mole fraction x in b: partial pressure = a × x.

Symbols and units
a
Total pressure
b
Mole fractions

Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.

Assumptions & limits

Assumptions & limits

  • Ideal-gas mixture under Dalton’s law. Mole fractions must sum to one. Lists support up to 1,000 finite values.
Are these inputs private?

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Further reading

Method reference ↗

Background reading; this does not imply endorsement or independent review of SumFizz.

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