Which of the following will not increase the rate of a reaction? a. using a catalyst b.increasing the temperature c. decreasing the concentration of a reactant d. finding a shorter path for the reaction to take place e. increasing the kinetic energy

How does on increase rate with concentration?

To find out which of the following options will not increase the rate of a reaction, let's examine each option:

a. Using a catalyst: A catalyst is a substance that increases the rate of a chemical reaction by lowering the activation energy required for the reaction to occur. Therefore, using a catalyst will increase the rate of a reaction.

b. Increasing the temperature: Increasing the temperature generally increases the rate of a reaction. This is because as temperature increases, the kinetic energy of the reactant particles also increases, leading to more frequent and energetic collisions.

c. Decreasing the concentration of a reactant: According to the collision theory, the rate of a reaction is directly proportional to the concentration of the reactants. Therefore, decreasing the concentration of a reactant will generally decrease the rate of a reaction.

d. Finding a shorter path for the reaction to take place: This refers to the concept of lowering the activation energy, similar to using a catalyst. Finding a shorter path for the reaction to take place, such as by using a different reaction mechanism, will generally increase the rate of a reaction.

e. Increasing the kinetic energy: This is similar to increasing the temperature. As mentioned earlier, increasing the kinetic energy of reactant particles by either increasing the temperature or providing additional energy will generally increase the rate of a reaction.

Based on the analysis above, the option that will not increase the rate of a reaction is c. Decreasing the concentration of a reactant.

The option that will not increase the rate of a reaction is c. decreasing the concentration of a reactant.