How can one increase the rate of a chemical reaction?

Question

A) Increase the activation energy needed.

B) Cool the reactants.

C) Decrease the concentration of the reactants.

D) Add a catalyst.

E) Increase the entropy of the reactants.

Answer 1

D...add a catalyst

Answer 2

D

Answer 3

D. add a catalyst

catalyst aren't consumed during a chemical reaction so they can help in more than one chemical transformations at a time

Answer 4

While D may sound like the right answer, catalysts don't automatically speed up reactions. They can slow them down too. What makes something a catalyst is the fact that it can change the rate of the reaction, but doesn't end up mixing with the reactants to become the product.

Increasing entropy, or the rate at which something becomes more disordered would be more accurate - as someone had already pointed out. As something becomes more disordered, it would mean more scattered...and increasing the surface area of reactant to speed up the reaction. The more reactants are able to interact, the faster the reaction.

I'd vote for E.

Answer 5

Increase the activation energy --> No because that makes it even slower

Cool reactants --> Low temp slows down the rxn

Add a catalyst --> Definitely yes

Increase the entropy --> Yes the more collisions occur, the faster rxn occurs