In walking 1 km, you use about 100 kJ of energy. Thisenergy comes from the oxidation of foods, which is about30% efficient. How much energy do you save by walking1 km instead of driving a car that gets 8.0 km L-1gasoline (19 miles/gal)? The density of gasoline is 0.68 g cm-3and its enthalpy of combustion is-48 kJ g-1.
In walking 1 km, you use about 100 kJ of energy. Thisenergy comes from the oxidation of foods, which is about30% efficient. How much energy do you save by walking1 km instead of driving a car that gets 8.0 km L-1gasoline (19 miles/gal)? The density of gasoline is 0.68 g cm-3and its enthalpy of combustion is-48 kJ g-1.
Chapter6: Thermochemistry
Section: Chapter Questions
Problem 104AE
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In walking 1 km, you use about 100 kJ of energy. This
energy comes from the oxidation of foods, which is about
30% efficient. How much energy do you save by walking
1 km instead of driving a car that gets 8.0 km L-1
gasoline (19 miles/gal)? The density of gasoline is 0.68 g cm-3
and its enthalpy of combustion is-48 kJ g-1.
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