3 years ago

A heat engine has a hot reservoir of 490°C and a cold reservoir of 210°C. What is the efficiency of the engine?

Physics

2 answers:

elena-14-01-66 [18.8K]3 years ago

4 0

ec=(TH-TC)/TH

ec=(490-210)/490=57.1%

Nookie1986 [14]3 years ago

3 0

<span>Efficiency is the measure of how efficient a process is. It is used to assess the ability of a process in avoiding waste energy, materials, money and time in doing a desirable output. It is calculated in thermodynamics as:

Efficiency = 1 - Tc / Th

</span>Efficiency = 1 - 210 / 490
Efficiency = 0.57

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Ulleksa [173]

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