Answer :
Dalton's law of partial pressures, the total pressure by a mixture of gases is equal to the sum of the partial pressures of each of the constituent gases.
The partial pressure is defined as the pressure each gas would exert if it alone occupied the volume of the mixture at the same temperature.
Dalton's Law, the law of partial pressure the total pressure exerted by a mixture of gases is. equal to the sum of the pressure exerted independently by each gas. The pressure exerted by each gas its pressure is. directly proportional to the percentage of that gas in the gas mixture.
Dalton discovered that oxygen combined with either one or two volumes of nitric oxide in closed vessels over water and this pioneering observation of integral multiple proportions provided important experimental evidence for his incipient atomic ideas.
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