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A heat engine is being designed to have a Carnot efficiency of 65.0% when operating between two energy reservoirs. (a) If the temperature of the cold reservoir is , what must be the temperature of the hot reservoir? (b) Can the actual efficiency of the engine be equal to 65.0%? Explain?

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Rochelle Enrera
Rochelle EnreraLv10
14 Nov 2020

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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

A Carnot engine uses hot and cold reservoirs that have temperatures of 1684 and 842 K, respectively. The input heat for this engine is |QH|. The work delivered by the engine is used to operate a Carnot heat pump. The pump removes heat from the 842-K reservoir and puts it into a hot reservoir at a temperature T`. The amount of heat removed from the 842-K reservoir is also |QH|. Find the temperature T`.

Suppose you wish to improve the efficiency of a Carnot engine.Compare the improvement to be realized via each of the followingalternatives:
1. Lower the Kelvin temperature of the cold reservoir by a factorof two
2. raise the Kelvin temperature of the hot reservoir by a factor ofthree
3. cut the Kelvin temperature of the cold reservoir in half anddouble the Kelvin temperature of the hot reservoir

Rank the three methods in order of decreased engine efficiency, thehighest first.

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