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NEET levelSingle correct optionDifficulty 1 of 3ig060

The sum of the mole fractions of all the gases in a mixture is

Azero
Bequal to the total pressure
Cone
Dequal to the number of components

Answer: C

Mole fraction

x_{i} = n_{i} / n_{total}

, so

\sum x_{i} = \frac{\sum n _{i}}{n _{total}} = 1

. Correspondingly the partial pressures add up to the total pressure.

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