Concept explainers
(a)
To calculate: The partial pressure of 21% oxygen, 78% nitrogen, and 0.3% carbon dioxide in dry air.
Introduction: The atmosphere surrounding the Earth is a mixture of gases and water vapor. According to Dalton’s law, the total pressure exerted by a mixture of gases is the sum of the pressure exerted by individual gases.
(b)
To calculate: The partial pressure of 40% oxygen, 13% nitrogen, 45% carbon dioxide, and 2% hydrogen in dry air.
Introduction: The pressure exerted by one component of a mixture of gases is known as its partial pressure. Partial pressure is commonly expressed in mm Hg.
(c)
To calculate: The partial pressure of 10% oxygen, 15% nitrogen, 1% argon, and 25% carbon dioxide in dry air.
Introduction: The pressure of an individual gas in the mixture of gases is known as the partial pressure of the gas (Pgas).
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Human Physiology: An Integrated Approach (8th Edition)
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