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Student Question

Secondary IV • 1yr.

For Science: Energy And Energy Efficiency.

The energy efficiency of the pump motors at a waster ware treatment plant is 35%. How much energy do the motors consume to procure 2448 KJ of useful energy?


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Explanations (1)

  • Explanation from Alloprof

    Explanation from Alloprof

    This Explanation was submitted by a member of the Alloprof team.

    Team Alloprof • 1yr.

    Hi ArtisticApple5172,

    Thanks for your question!

    To answer the question, we need the energy efficiency formula :


    In your problem, we know the energy efficiency and the useful energy. If we put these values in the formula, you can isolate the energy consumed. I'll let you finish the problem !

    Here's our concept sheet if the energy efficiency :

    I hope that helps and feel free to write us again !

    Anthony B.

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