Rate of reaction

Question 1

rate of reaction

Answer 1

the speed at which a chemical reaction occurs

Question 2

how to find the rate of reaction

Answer 2

measuring amount of reactant used up, or the amount of product formed, in a specific time

Question 3

collision theory

Answer 3

1. reactant particles must collide with one another. An effective collision results in the formation of new product particles.
2. particles must collide with enough energy to break existing bonds of reactant particles
3. particles must collide in the correct orientation for new bonds to be formed

Question 4

how can the rate of reaction be altered

Answer 4

by changing the frequency of collisions and/or changing the proportions of effective collisions

Question 5

the activation energy of a reaction

Answer 5

the minimum total kinetic energy that colliding reactant particles must-have for the reaction to occur

Question 6

what happens if colliding particles do not have at least the Ea

Answer 6

then the collisions will not be effective and the reactant particles will simply bounce apart

Question 7

activation energy as shown on an energy diagram

Answer 7

an energy barrier that must be overcome before the reaction will start. the energy released after the start of an exothermic reaction provides the activation energy for other particles to react