Question

Classify each reaction as endothermic or exothermic.​

Answer 1

Exothermic ΔH = -176 kJ/mol

Exothermic ΔH = -2044 kJ/mol

Endothermic ΔH = 127 kJ/mol

Step-by-step explanation:

To determine whether a reaction is endothermic or exothermic given ΔH, simply see if it is positive or negative. If ΔH is negative, heat is released from the system, therefore, exothermic. If ΔH is positive, heat is absorbed by the system, therefore, endothermic.