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Answer: 2. 0.7

\(\mathrm{RQ}=\dfrac{\text{volume of }\mathrm{CO_2}\text{ released}}{\text{volume of }\mathrm{O_2}\text{ used}}\).

Tripalmitin (a fat) oxidises as \(\mathrm{2C_{51}H_{98}O_6 + 145\,O_2 \to 102\,CO_2 + 98\,H_2O}\).

\(\mathrm{RQ}=102/145\approx 0.7\). Fats have RQ below 1 because they contain little oxygen, so more \(\mathrm{O_2}\) is needed. Option 2 is correct.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report
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