What effect does concentration have on the rate of a chemical reaction?

2 Answers
Jan 9, 2016

Answer:

For most reaction involving liquid and gas, doing so will usually increase the chemical reaction.

Explanation:

As a solution is more concentrated, there are more atoms moving around. Hence, it's atoms have a higher chance of colliding with the reactant particles causing the reaction to occur faster.

Jan 9, 2016

Answer:

Typically, increasing the concentration of one or both of your reagents will increase the rate of reaction.

Explanation:

Rates of reaction is often governed by collision theory. Particles are always moving around with a certain energy. Reagent particles react by colliding with a combined energy which is greater than the activation energy of the reaction. This is called a successful collision.

Concentration in this context is a measure of the number of particles occupying a certain volume. Increasing the concentration means there are more particles in the same volume.

More particles in the same volume means that there is a greater chance of collisions occurring between particles. As there are more collisions, the chances of a successful collision also increase. Therefore, more reactions happen more quickly, so the rate of reaction is greater.