Ea appears as a potential energy hill for carrying out the reaction between:
Correct answer: A. Among the reactants
- A. Among the reactants
- B. Among the products
- C. Reactants and the products
- D. None of the above
Explanation
Activation energy, denoted as Ea, is the minimum energy required to initiate a chemical reaction. It is depicted as a potential energy hill that reactants must overcome to reach the transition state and form products. Therefore, the correct answer is that Ea appears as a potential energy hill among the reactants. The other options are incorrect because activation energy is not associated with the products or both reactants and products simultaneously, and option D is incorrect as activation energy is indeed a crucial part of the reaction process.
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About Reaction Kinetics
Reaction kinetics relates reaction rate to concentration, temperature, surface area and catalysts. Questions cover rate laws, reaction order, rate constants, activation energy and the activated complex, including how a catalyst lowers the activation energy without changing the overall energy change or equilibrium position.
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