In an experiment, a student wants to increase the rate of a reaction that involves gases. Which change to the reactants would

accomplish this?

Increase the volume to decrease pressure and to increase concentration.

Increase the volume to increase pressure and to decrease concentration.

Decrease the volume to decrease pressure and to increase concentration.

Decrease the volume to increase pressure and to increase concentration.

Decrease the volume to increase pressure and to increase concentration.

Explanation:

Now let us consider the scenario very closely. Remember that our target is to increase the rate of reaction of the gas and we exploring the most feasible way to make it possible.

First, we must remember the collision theory. According to the collision theory, reactions occur when particles possessing a certain amount of energy known as activation energy collide inelastically with each other.

Collision between gas molecules is more likely when the molecules are crowded into a small space (less volume). The pressure of the gas increases. This automatically implies that its concentration increases accordingly. Thus, the rate of reaction of the gas increases, hence the answer.