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Question

From the above diagram, which labeled arrow (A,B,C&D) represents the activation energy for the reverse reaction?
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A
A
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B
B
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C
C
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D
D
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Solution

The correct option is B B
Activation energy may also be defined as the minimum energy required to start a chemical reaction. The activation energy of a reaction is usually denoted by Ea and given in units of kilojoules per mole (kJ/mol) or kilocalories per mole (kcal/mol).

For the reverse reaction, C+DA+B
Energy required is the height from products to peak =B

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