Which statement best describes the Collision theory?
A All collisions lead to chemical reactions.
B. Most collisions lead to chemical reactions.
C. Very few reactions involve particle collisions.
D. Effective collisions lead to chemical reactions
Answers
Answer:
Collision theory states that: “In order to have a chemical reaction two particles must collide with (1) a combined energy greater than the activation energy, and (2) the correct orientation.” So in order to prevent dangerous reactions from happening, storing the reactants in separate containers are advisable.
A. Description of chemical reactions. ... Not all collisions, however, bring about chemical change. A collision will be effective in producing chemical change only if the species brought together possess a certain minimum value of internal energy, equal to the activation energy of the reaction.
B. If the activation energy is much smaller than the average kinetic energy of the molecules, the fraction of molecules possessing the necessary kinetic energy will be large; most collisions between molecules will result in reaction, and the reaction will occur rapidly.
D. Collision theory states that the rate of a chemical reaction is proportional to the number of collisions between reactant molecules. ... Effective collisions are those that result in a chemical reaction. In order to produce an effective collision, reactant particles must possess some minimum amount of energy.
The statement, effective collisions lead to chemical reactions(option D) best describes the Collision theory.
The more reactant molecules collide, the more they react with one another, resulting in a quicker reaction rate. Only a small percentage of collisions are effective collisions in reality. Collisions that result in a chemical reaction are called effective collisions.