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anonymous

  • one year ago

A heat engine has a cold reservoir of 250°C and a hot reservoir of 715°C. What is the efficiency of the engine

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  1. anonymous
    • one year ago
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    do you have options

  2. anonymous
    • one year ago
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    65.0% 60.8% 73.6% 58.6% 69.1%

  3. anonymous
    • one year ago
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    @Hayleymeyer

  4. Hayleymeyer
    • one year ago
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    I thought 47%

  5. johnweldon1993
    • one year ago
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    Are we to assume a Carnot heat engine?

  6. johnweldon1993
    • one year ago
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    If so it would be \[\large efficiency = 1 - \frac{T_c}{T_h}\]

  7. anonymous
    • one year ago
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    sorry i am done with this question i passed the test tho :D

  8. johnweldon1993
    • one year ago
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    Great job! This question seemed off anyways...you are supposed to use Kelvin which would lead to the answer @Hayleymeyer gave of 47% however here the answer that they wanted was from using Celsius... Oh well, anyways...Good job! :D lol

  9. anonymous
    • one year ago
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    thx for your help everyone :)

  10. Hayleymeyer
    • one year ago
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    opssie

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