Collision Theory + Reaction Rates

Question 1

What is the Collision theory?

Answer 1

The collision theory is a principle of chemistry used to predict rates of chemical reactions

Question 2

Factors affecting reaction rates?

Answer 2

concentration , surface area , temperature , and presence of a catalyst

Question 3

concentration?

Answer 3

an increase in the concentration of any reacting substance, the chances for collisions between molecules are increased because there are more molecules per unit of volume

Question 4

surface area?

Answer 4

If the surface area of a reactant is increased: more particles are exposed to the other reactant. there is a greater chance of particles colliding, which leads to more successful collisions per second

Question 5

Temperature?

Answer 5

higher temperature provides more kinetic energy to the molecules means that more molecules are moving faster and hitting each other with more force

Question 6

presence of a catalyst?

Answer 6

a catalyst increases the rate of reaction by lowering activation energy and increasing reaction rate