ThermochemistryHard

Question

For a specific work, on an average a person requires 5616 kJ of energy. How many kilograms of glucose must be consumed if all the required energy has to be derived from glucose only? ΔH for combustion of glucose is −2808 kJ mol–1.

Options

A.0.720 kg
B.0.36 kg
C.0.18 kg
D.1.0 kg

Solution

Mass of glucose needed = $\frac{5616}{2808} \times 130 = 360\text{ g}$

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