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21 July, 11:35

N2 (g) + 202 (g) + 16.2 kcal → 2NO2 (g)

Is it endothermic or exothermic?

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  1. 21 July, 11:56
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    Endothermic

    Explanation:

    Endothermic and exothermic have to do with energy. Breaking down each of the words:

    Endo - thermic = absorb energy

    Exo - thermic = release energy

    kcal is a form of energy, calories.

    For this reaction, energy is on the reactant side. Energy was absorbed for the reaction to occur.
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