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https://texercises.com/exercise/gasoline-in-a-cars-engine/
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Exercise:
The burning of gasoline in a car releases about .ekcal per gal. If a car averages kilometerper gal when driving kilometerperhour which requires hp what is the efficiency of the engine under those conditions? One gallon equals .liter and one imperial horsepower equals W.

Solution:
In -units the burning of gasoline releases: H .ekcal/gal numpr.e fracJ.liter pq.ejouleperliter In one hour the car drives km and its ake is therefore V frackmkm per gal.gal.liter which release E V H .liter .ejouleperliter .eJ. The engines power of hp two horsepower one imperial horsepower is pqW is in -units W. In one hour this corresponds to the energy E' P t .eJ. The efficiency under those conditions is: eta frac.eJ.eJ . That's around %.
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Exercise:
The burning of gasoline in a car releases about .ekcal per gal. If a car averages kilometerper gal when driving kilometerperhour which requires hp what is the efficiency of the engine under those conditions? One gallon equals .liter and one imperial horsepower equals W.

Solution:
In -units the burning of gasoline releases: H .ekcal/gal numpr.e fracJ.liter pq.ejouleperliter In one hour the car drives km and its ake is therefore V frackmkm per gal.gal.liter which release E V H .liter .ejouleperliter .eJ. The engines power of hp two horsepower one imperial horsepower is pqW is in -units W. In one hour this corresponds to the energy E' P t .eJ. The efficiency under those conditions is: eta frac.eJ.eJ . That's around %.
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Attributes & Decorations
Branches
Temperatur & Heat, Work, Energy, Power
Tags
car, efficiency, engine, gasoline, heat, heatengine, horse, hp, laws, of, physics, power, thermodynamics
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Difficulty
(3, default)
Points
3 (default)
Language
ENG (English)
Type
Calculative / Quantity
Creator uz
Decoration
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Link