The heat of combustion of starch is about 540 kJ/mol of carbon. Assume that average rate of heat loss by an adult male is 125 W. If we were to assume that all the heat comes from the oxidation of star

Question

The heat of combustion of starch is about 540 kJ/mol of carbon. Assume that average rate of heat loss by an adult male is 125 W. If we were to assume that all the heat comes from the oxidation of starch, how many units of starch (1 mole carbon per unit) must be oxidized per day to provide for this heat loss?

Answer:

20.00

Solution:

Daily heat loss = 125 × 86400 = 1.08 × 10⁷ J = 10800 kJ. Units of starch per day = 10800/540 = 20. Answer: 0020.

TestHub · Accepted Answer

Daily heat loss = 125 × 86400 = 1.08 × 10 7 J = 10800 kJ. Units of starch per day = 10800/540 = 20. Answer: 0020.

Chemistry - Thermochemistry Question with Solution | TestHub

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