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8 August, 21:11

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

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  1. 8 August, 21:26
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    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

    Efficiency = 1 - 210 / 490

    Efficiency = 0.57
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