The reasoning: Fick's law for gases
V̇gas = (A/T) × D × (P₁ − P₂), with D ∝ solubility/√MW. CO₂ diffuses ~20× faster than O₂ (solubility ~24×). The barrier (~0.2–0.5 µm) spans ~50–100 m².
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Part 6 · Respiratory Physiology
Same concept, other depth: Foundation →
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V̇gas = (A/T) × D × (P₁ − P₂), with D ∝ solubility/√MW. CO₂ diffuses ~20× faster than O₂ (solubility ~24×). The barrier (~0.2–0.5 µm) spans ~50–100 m².
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