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If the temperature of the source is increased, the efficiency of a Carnot engine?

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in Engineering Physics I by (558k points)
If the temperature of the source is increased, the efficiency of a Carnot engine?

(a) Increases

(b) Decreases

(c) Remains constant

(d) First increases and then remains constant

I have been asked this question at a job interview.

My doubt is from Thermodynamics topic in portion Kinetic Theory of Gases of Engineering Physics I

1 Answer

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Best answer
Right answer is (a) Increases

The explanation is: Efficiency,

Ƞ=1-T2/T1

When the temperature T1  of the source increases, the efficiency increases.

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