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Standard XII
Chemistry
Law of Mass Action
24. What is t...
Question
24. What is the Minimum activation energy required for endothermic and exothermic reaction?
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Q.
If the reactants are at a higher energy level than products, the reaction is exothermic. The activation energy of a forward reaction is less than that of the backward reaction. That means, the energy required for breaking of bonds is less than the energy released during formation of bonds. In case of an endothermic reaction, the activation energy of the forward reaction is more than that of backward reaction.
Q.
For an endothermic reaction, where
Δ
H
represents the enthalpy of reaction, the minimum value for the energy of activation will be:
Q.
For an endothermic reaction,
△
H
represents the enthalpy of the reaction in
k
J
m
o
l
−
1
. The minimum amount of activation energy will be:
Q.
For an endothermic reaction, where
Δ
H
represents the enthalpy of the reaction in
k
J
/
m
o
l
, the minimum value for the energy of activation will be:
Q.
For an endothermic reaction where
Δ
H
represents the enthalpy of the reaction in
k
J
m
o
l
−
1
, the minimum value for the energy of activation will be:
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