Subject: Chemistry
Book: General Chemistry
In mixtures of gases, each gas exerts a partial pressure proportional to its mole fraction, as described by Dalton’s law of partial pressures: P(total) = P1 + P2 + … + Pn. For instance, in air, nitrogen, oxygen, argon, and other gases each contribute to total atmospheric pressure. Understanding partial pressures is crucial in respiratory physiology, industrial gas separation, and chemical equilibrium calculations involving gaseous reactants.
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