A Carnot engine takes 3000 J from a reservoir at 600 K, does some work, and discards some heat to a reservoir at 300 K. What is its efficien

Question

A Carnot engine takes 3000 J from a reservoir at 600 K, does some work, and discards some heat to a reservoir at 300 K. What is its efficiency?
50%
60%
20%
30%

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Acacia 5 years 2021-07-20T02:39:09+00:00 1 Answers 32 views 0

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  1. Nem
    0
    2021-07-20T02:40:44+00:00
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    Answer: 50%

    Explanation: efficiency=power input/power output ×100

    Eff.=300/600 ×100

    Eff=½×100

    Eff=50%

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