ΔH for the following reaction is -180 kJ. Is this reaction endothermic or exothermic? 2 Na(s) + 2 H2O(l) –> 2 NaOH(aq) + H2(g) Group of answer choicesexothermicendothermic
Question
ΔH for the following reaction is -180 kJ. Is this reaction endothermic or exothermic? 2 Na(s) + 2 H2O(l) –> 2 NaOH(aq) + H2(g) Group of answer choicesexothermicendothermic
Solution
This reaction is exothermic. The ΔH (change in enthalpy) for the reaction is negative (-180 kJ), which indicates that the reaction releases heat. In an exothermic reaction, the energy of the products is lower than the energy of the reactants, hence the negative ΔH. Therefore, the reaction is exothermic.
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