When 2 moles of HBr(g) react with Cl2(g) to form HCl(g) and Br2(g) according to the following equation, 81.1 kJ of energy are evolved: 2HBr(g) + Cl2(g) → 2HCl(g) + Br2(g) Is this reaction endothermic or exothermic? What is the value of q? (in kJ)
Added by Dawn K.
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Since 81.1 kJ of energy is evolved in the reaction, it is an exothermic reaction. Show more…
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