Emma L.

asked • 11/28/20

What is the engine's efficiency (in percent)?

As a gasoline engine is running, an amount of gasoline containing 10,200 J of chemical potential energy is burned in 1 s. During that second, the engine does 3,400 J of work.

(a)What is the engine's efficiency (in percent)?

(b)The burning gasoline has a temperature of about 4,200°F (2,600 K). The waste heat from the engine flows into air at about 88°F (304 K). What is the Carnot efficiency (in percent) of a heat engine operating between these two temperatures?

1 Expert Answer


Anthony T. answered • 11/28/20

5 (13)

Patient Math & Science Tutor

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.


Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.