Which of the following reaction energies is the most endothermic?
A)540 kJ/mole
B)-540 kJ/mole
C)125 kj/mole
D)-125 kJ/mole
E)not enough information given

Question

Quizplus · Accepted Answer

Endothermic reactions have a positive delta H value, indicating that energy is absorbed during the reaction. Among the given options, choice A has the highest positive energy value, making it the most endothermic reaction. Choices B, C and D are all exothermic reactions since they have negative delta H values. Therefore, the answer is A.

Which of the Following Reaction Energies Is the Most Endothermic