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± Metabolism and Work The metabolism of glucose, C6H12O6, yields carbon dioxide, CO2(g), and water, H2O(l),...

± Metabolism and Work

The metabolism of glucose, C6H12O6, yields carbon dioxide, CO2(g), and water, H2O(l), as products. Energy released in this metabolic process is converted to useful work, w, with about 74.0 %  efficiency. Use the data below to answer questions about the metabolism of glucose.

Substance ΔH∘f
(kJ/mol)
CO2(g) −393.5
C6H12O6(s) −1273.3
H2O(l) −285.8
O2(g) 0

Part A

Calculate the mass of glucose metabolized by a 68.4 kg person in climbing a mountain with an elevation gain of 1990 m . Assume that the work performed in the climb is four times that required to simply lift 68.4 kg by 1990 m .

Express your answer to three significant figures and include the appropriate units.

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