ΘTheta
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Report Thread starter 7 years ago
#1
I'm a bit stuck on understand if all the reacting molecules have to have energy greater than Ea, or only 1 needs too. E.g. say if the Ea is 5 units, 1 molecule has 7 units and the other has 2 units. Will the reaction be successful, or do both molecules need to have energy greater than 5 units?

Thanks=)
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KombatWombat
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Report 7 years ago
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In any given collision, the two colliding molecules have to have sufficient energy (greater than the activation energy) for the reaction to take place.

So in your example, if those two molecules collided, they'd have 9 units and the reaction would happen.

Bear in mind that the energy of any individual molecule is constantly changing as they collide off each other; it's the proportion of billions and billions of molecules that have sufficient energy that's important, and which determines the overall rate of a reaction
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