Why is heat often added to chemical reactions performed in the laboratory?
A)to allow a greater number of reactants to pass over the activation energy
B)to increase the rate at which reactant collide
C)to compensate for the natural tendency of energy to disperse
D)all of the above

Question

Quizplus · Accepted Answer

Heat is often added to chemical reactions performed in the laboratory to achieve all of the mentioned objectives. Adding heat increases the kinetic energy of the reactant particles, allowing a greater number of them to pass over the activation energy, which is the minimum amount of energy needed for a reaction to occur. The increase in kinetic energy also increases the rate at which reactant particles collide, leading to a faster reaction. Finally, heat is added to compensate for the natural tendency of energy to disperse and to maintain a constant temperature during the reaction.

Why Is Heat Often Added to Chemical Reactions Performed in the Laboratory