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10 February, 12:06

Calculate the change in total internal energy for a system that releases 2.59 * 104 kJ of heat and does 6.46 * 104 kJ of work on the surroundings. Enter your answer in scientific notation.

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  1. 10 February, 12:21
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    See explanation below

    Explanation:

    The equation to use for this is the following:

    dU = q + w

    As the heat is being release, this value is negative, and same here happens with the work done, because it's in the surroundings.

    Therefore the change in the energy would be:

    dU = - 2.59x10^4 - 6.46^4

    dU = - 9.05x10^4 kJ
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