What happens when you increase the temperature of a reaction? a. more collisions occur and the time required for the reaction increases b. fewer collisions occur and the time required for the reaction decreases c. fewer collisions occur and the time required for the reaction increases d. more collisions occur and the time required for the reaction decreases.

Option (D) is the correct answer.

more collisions occur and the time required for the reaction decreases.

Explanation:

When we increase the temperature of reactant molecules then there will occur an increase in the kinetic energy of molecules.

Also,      K.E =

So, kinetic energy is directly proportional to the temperature. As a result, more number of collisions will take place between the molecules due to which there will be an increase in the rate of reaction.

Therefore, we can conclude that when you increase the temperature of a reaction then more collisions occur and the time required for the reaction decreases.

answer : one can design an experiment using a liquid and an additive that can be added to the liquid and observe the chemical changes in the reaction species.

one would need a beaker which is filled with a known amount of the liquid in which thermometer is placed to measure the temperature changes; after addition of the additive to the liquid solution one can note down the temperature change and find whether the reaction is endothermic or exothermic in nature. by subtracting the initial temperature value with the final temperature one can find the temperature changes.

various combinations of liquid and additive can be used. liquid in this case can be a known quantity of water and additives can be epsom salt or without epsom salt the experiment can be conducted to notice the changes. water and ice, hydrogen peroxide and dry yeast, vinegar and baking soda,etc.