Dalton's law of partial pressures English

Meaning Dalton's law of partial pressures meaning

What does Dalton's law of partial pressures mean?

Dalton's law of partial pressures

— noun (= Dalton''s law) (chemistry and physics) law stating that the pressure exerted by a mixture of gases equals the sum of the partial pressures of the gases in the mixture; the pressure of a gas in a mixture equals the pressure it would exert if it occupied the same volume alone at the same temperature