mayhujicoleC mayhujicoleC
  • 24-04-2017
  • Chemistry
contestada

Speeds up the reaction but does not change k

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Edufirst
Edufirst Edufirst
  • 26-04-2017
The answer is catalyst.

A catalyst is characterized by acceleration the rate of a chemical reaction but not modifiy the equilibrium, which is what k represents (the constant of equilibrium of the reaction).

The catalyst manages that the reaction goes through a different pathway, with a lower activation energy, so the transition compound is reached faster and the whole reaction goes faster, but the final species and their equilibriium concentrations do not change.
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