Kinetics and Equilibrium

Question 1

Reaction Kinetics

Answer 1

Rate at which reactions occur

Question 2

Reaction Mechanism

Answer 2

Steps that occur to produce a chemical reaction

Question 3

Intermediate

Answer 3

Substance that forms in 1 step but used in another

Question 4

Activated complex

Answer 4

Unstable substance that forms when some bonds are breaking and others are forming

Question 5

Activation energy

Answer 5

Minimum amount of energy needed to form an activated complex

Question 6

Collision Theory

Answer 6

In order for a reaction to occur, particles must collide with enough energy and correct orientation

Question 7

Endothermic Graph

Answer 7

Low at start

Question 8

Exothermic Graph

Answer 8

High at start

Question 9

Surface Area

Answer 9

Increased surface area makes more particles available to collide and speeds up the reaction

Question 10

Temperature

Answer 10

Increased temp, particles move faster and collide more often

Question 11

Catalyst

Answer 11

Speeds up reaction by providing a new mechanisms with lower activation energy

Question 12

Chemical equilibrium

Answer 12

Dynamic state in which two opposing reactions occur at the same rate in the same container

Question 13

Forward Reation

Answer 13

Starts quickly, reactants form products, and rate decreases as the reaction proceeds

Question 14

Reverse Reaction

Answer 14

Initial rate is zero, products form reactants, rate increases as the reaction proceeds

Question 15

LeChatelier’s Principle

Answer 15

If an equilibrium system is subjected to a stress, the equilibrium with shift to relive that stress