Which of the answer choices below best explains Dalton’s Law of partial pressure?A.The volume of a fixed mass of gas is directly proportional to its Kelvin temperature, if the pressure is kept constantB.Equal volumes of different gases at the same temperature and pressure contain the same number of particles.C.For a given mass of gas at constant temperature, the volume of the gas varies inversely with pressure.D.At constant volume and temperature, the total pressure exerted by a mixture of gases is equal to the sum of the partial pressures of the component gases.
Question
Which of the answer choices below best explains Dalton’s Law of partial pressure?A.The volume of a fixed mass of gas is directly proportional to its Kelvin temperature, if the pressure is kept constantB.Equal volumes of different gases at the same temperature and pressure contain the same number of particles.C.For a given mass of gas at constant temperature, the volume of the gas varies inversely with pressure.D.At constant volume and temperature, the total pressure exerted by a mixture of gases is equal to the sum of the partial pressures of the component gases.
Solution
The answer choice that best explains Dalton’s Law of partial pressure is D. "At constant volume and temperature, the total pressure exerted by a mixture of gases is equal to the sum of the partial pressures of the component gases." Dalton's Law states that in a mixture of non-reacting gases, the total pressure exerted is equal to the sum of the partial pressures of the individual gases. This means that each gas in a mixture essentially behaves independently of the others and contributes to the total pressure in proportion to its concentration.
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