In a certain equilibrium process, the activation energy of the forward reaction is greater than the activation energy of the reverse reaction. This reaction is
Correct answer: A. Endothermic
- A. Endothermic
- B. Exothermic
- C. Spontaneous
- D. Nonspontaneous
Explanation
The difference between the activation energy of the forward reaction and the reverse reaction determines the heat of reaction. When the forward activation energy is larger than the reverse, the products end up at a higher energy level than the reactants, which means energy was absorbed from the surroundings. This is the fundamental definition of an endothermic reaction.
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About Chemical Equilibrium
Reversible reactions reach dynamic equilibrium when forward and reverse rates become equal, and Le Chatelier's principle predicts the effect of changing concentration, pressure or temperature. The chapter also covers solubility product, the common ion effect, buffer action and the conditions used in Haber's process, with equilibrium shifts distinguished from changes in the equilibrium constant.
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