COMEDK · Chemistry · 19. Chemical Kinetics
Which of the following statement is incorrect about activation energy?
- A Higher the activation energy slower is the rate of reaction.
- B Catalyst decreases the activation energy.
- C SI unit of activation energy is \(\mathrm{J} / \mathrm{mol} / \mathrm{K}^{-1}\).
- D Activation energy depends upon the rate of reaction.
Answer & Solution
Correct Answer
(C) SI unit of activation energy is \(\mathrm{J} / \mathrm{mol} / \mathrm{K}^{-1}\).
Step-by-step Solution
Detailed explanation
Activation energy (\(E_a\)) is the minimum extra amount of energy absorbed by a reactant molecule to get converted into product. According to the Arrhenius equation, \(k = A e^{-E_a / RT}\), where \(k\) is the rate constant. Higher \(E_a\) leads to a smaller value of \(k\),…
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