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why work done on a system …

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why work done on a system is negative (in physics) and positive (in chemistry)?

    • Posted by Ravi Pal 8 years, 3 months ago

    CBSE > Class 11 > Physics
    • 2 answers

    Ritika Thakur 8 years, 3 months ago

    Because in chemistry if work done on the system it means chemical reactions is not done by the system.But in case of physics if work done by the system it means piston expands and its volume increases so work is positive and its reverse is negative.

    8Thank You

    Ranbir Trikha 8 years, 3 months ago

    Work done by the system - Work done on the system +

    3Thank You

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