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How do we know whether an equation has high activation energy by seeing the equation?
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(Original post by precious maro)
the enthalpy of reaction
the enthalpy of reaction
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#5
I'm afraid the other poster is wrong, well sort of....
Activation energy exists for almost all reactions and this includes reactions with a negative enthalpy of reaction. The activation energy is, to an extent, correlated to the enthalpy, getting larger for more positive enthalpies and smaller for more negative.
The poster is wrong to say that just because the reaction is endothermic it has a high activation enthalpy, it is very dependant upon other factors which are not necessarily related to enthalpy.
Activation energy exists for almost all reactions and this includes reactions with a negative enthalpy of reaction. The activation energy is, to an extent, correlated to the enthalpy, getting larger for more positive enthalpies and smaller for more negative.
The poster is wrong to say that just because the reaction is endothermic it has a high activation enthalpy, it is very dependant upon other factors which are not necessarily related to enthalpy.
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