total bond energy quick check hydrogen bromide breaks down into diatomic hydrogen and bromine in the…

total bond energy quick check hydrogen bromide breaks down into diatomic hydrogen and bromine in the reaction shown. 2hbr→h₂ + br₂ the energy of the reactant is 732 kj/mol, and the energy of the products is 630 kj/mol. what is the total energy of the reaction? is this reaction endothermic or exothermic? (1 point) -102 kj/mol, endothermic 102 kj/mol, exothermic -102 kj/mol, exothermic 102 kj/mol, endothermic

total bond energy quick check hydrogen bromide breaks down into diatomic hydrogen and bromine in the reaction shown. 2hbr→h₂ + br₂ the energy of the reactant is 732 kj/mol, and the energy of the products is 630 kj/mol. what is the total energy of the reaction? is this reaction endothermic or exothermic? (1 point) -102 kj/mol, endothermic 102 kj/mol, exothermic -102 kj/mol, exothermic 102 kj/mol, endothermic

Answer

Explanation:

Step1: Calculate reaction energy

Reaction energy = Energy of products - Energy of reactants. So, $630 - 732=- 102$ kJ/mol.

Step2: Determine reaction type

If reaction energy is negative, heat is released and it is an exothermic reaction. Since the value is - 102 kJ/mol, it is exothermic.

Answer:

  • 102 kJ/mol, exothermic