The equation is usually written as:

P = X

_{solvent}P

_{pure}

Where X is the mole fraction of the solvent and P

_{pure}is the vapor pressure of the pure solvent.

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Law derived by the French scientist Francois-Marie Raoult describing the relationship between the vapor pressure of a solvent to its mole fraction in a solution.

The equation is usually written as:

P = X_{solvent}P_{pure}

Where X is the mole fraction of the solvent and P_{pure} is the vapor pressure of the pure solvent.

The equation is usually written as:

P = X

Where X is the mole fraction of the solvent and P