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 = $\frac{5616}{2808} \times 130 = 360\text{ g}$

Create a free account to view solution

View Solution Free
Topic: Thermochemistry·Practice all Thermochemistry questions

More Thermochemistry Questions

Calculate the standard free energy of the reaction at 27°C for the combustion of methane using the given dataCH4(g) + 2O...Calculate the standard free energy change for the ionization HF(aq) → H+ (aq) + F– (aq) from the following data.HF(aq) →...What will be the heat of formation of methane, if the heat of combustion of carbon is′-x′ kJ, heat of format...Boron exists in different allotropic forms. All allotropic form contains icosahedral units (icosahedral is a regular sha...ΔfH° for CO2(g) and H2O(l) are −94.0 and −68.0 kcal/mol. ΔfH° for the propanoic acid is one-third of the enthalpy of com...