Dalton's Law Definition — FRCA Primary MCQ
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Correct answer: C — Total pressure equals the sum of partial pressures of each gas
Dalton's law: total pressure of a gas mixture equals the sum of partial pressures of each constituent gas. For air at 101.3 kPa: total = PN2 + PO2 + PCO2 + PH2O + Pothers.
Reference: Al-Shaikh Stacey 2019 Essentials of Anaesthetic Equipment