# What are the actions of a catalyst?

Oct 9, 2016

Its speeds up a chemical reaction.

#### Explanation:

In simple words,
Catalysts lower down the activation energy ( the minimum energy that reactants must have to undergo a reaction ) of a chemical energy.

$\textcolor{red}{\text{Well, how do they do this?}}$ Its simply because they provide an alternative route to the reaction by increasing the number of collisions between the particles.

{As all the chemical reactions take place collision between the particles of substances, the more the collision rate the faster the reaction, and this what a catalyst do.}