Consider the exothermic combustion of coal.Which of the following could increase the rate of reaction?

Question

Quizplus · Accepted Answer

Using smaller pieces of coal increases the surface area of coal exposed to oxygen, which can increase the frequency of collision between coal and oxygen molecules, ultimately increasing the rate of reaction. Increasing the concentration of oxygen also increases the frequency of collision between coal and oxygen molecules, thereby increasing the rate of reaction. Lowering the temperature actually decreases the rate of reaction as it reduces the kinetic energy of particles, leading to a decrease in the frequency of collision between reacting molecules.

Consider the Exothermic Combustion of Coal