| Dalton's law |
law of multiple proportions: (chemistry) law stating that when two elements can combine to form more than one compound the amounts of one of them that combines with a fixed amount of the other will exhibit a simple multiple relation (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
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| Dalton's law |
The total pressure of a mixture of gases is the sum of the pressures each component would have if it alone occupied the volume of the mixture at its temperature. Dalton's law is strictly valid only for hypothetical ideal gases but is a good approximation for atmospheric gases at normal terrestrial temperatures and pressures.
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| Dalton's l. |
the pressure exerted by a mixture of nonreacting gases is equal to the sum of the partial pressures of the separate components; it holds true only at very low pressures.
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