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Vapor Pressure Lowering Non-Ideal Solution Calculator

ΔP = P° − γ·P°·x — Raoult with activity coefficient.

Calculates vapor pressure lowering for a non-ideal solution using Raoult's law with an activity coefficient for the solvent.

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Dr. Helena Ortiz By Dr. Helena Ortiz
Published Last reviewed 1 min read

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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

P_solvent = γ·P°·x; ΔP = P° − γ·P°·x

In depth

Calculates vapor pressure lowering for a non-ideal solution using Raoult's law with an activity coefficient for the solvent.