Chapter 16-Sec 1

Question 1

Explain what reaction rate indicates about a particular chemical reaction

Answer 1

In order for a reaction to occur, molecules, atoms or ions must collide.

Question 2

What factors affect the rate of the overall reaction?

Answer 2

frequency, orientation and energy

Question 3

Explain what the reaction rate indicates about a particular chemical reaction

Answer 3

The reaction rate indicates the rate of change of the concentration of a reaction or product

Question 4

Compare the average reaction rate measured over an initial, short time interval to one measured over a long time interval?

Answer 4

As the concentration of the reactants decreases, the reaction rate decreases., thus, the longer the time period, the smaller the average reaction rate

Question 5

Compare the concentrations of the reactants and products during the course of a chemical reaction

Answer 5

The concentrations of the reactants decrease, and the concentrations of the products increase at the same rate

Question 6

Describe the relationship between activation energy and the rate of a reaction

Answer 6

The higher the activation energy, the slower the rate of reaction.

Question 7

Summarize what happens during the brief existence of an activated complex

Answer 7

Bonds in the reactants are in the process of breaking, while new bonds are beginning to form to produce the products.

Question 8

Apply collision theory to explain why collisions between two reacting particles do. not always result in the formation of a product

Answer 8

The collision must in a correct orientation and sufficient energy to form the activated complex

Question 9

Interpret how the speed of a chemical reaction is related to the spontaneity of the reaction

Answer 9

The speed and spontaneity of a chemical reaction are NOT related