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Partial Pressure Calculator (Dalton’s Law)

Split a total pressure among mixture components by mole fraction: Pi = xi·Ptotal.

Calculator

Results update as you type. Every step of the working is shown below.

Examples:

Result

Enter values above — the answer appears here instantly, with full working.

Formula used

P_total = ΣPᵢ; Pᵢ = xᵢ·P_total

Every result substitutes your values into this relation step by step above.

Assumptions

  • IDEAL GAS MIXTURE — components do not interact.
  • Each component occupies the whole volume at the common temperature.

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