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25 July, 02:31

2 A kovács a meleg vasat a hideg vízbe teszi. A vas

energiája 300 kJ-lal csökkent. Mennyivel nőtt a vízé?

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  1. 25 July, 06:22
    0
    300 kJ

    Explanation:

    There are two energy flows in this process.

    Heat lost by iron + heat gained by water = 0

    q₁ + q₂ = 0

    -300 kJ + q₂ = 0

    q₂ = 300 kJ

    The water gained 300 kJ.
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