alrshi465 alrshi465

08-07-2021
Physics

contestada

what is the efficiency of an engine that dies 288 J of work and exhausts 72 J of heat while taking 360 J of heat?

what is the efficiency of an engine that dies 288 J of work and exhausts 72 J of heat while taking 360 J of heat class=

Respuesta :

michaelboateng52 michaelboateng52

08-07-2021

Answer:

80%

Explanation:

Energy Input: 360 J

Energy Output: 288 J

e= 288/360 × 100

e= 80%

Alternatively,

e= W(total)/ Q (in)

e= 288/360

e=0.8×100

e=80%

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