Exam Twp

Question 1

Endothermic

Answer 1

Delta H is greater than 0

Question 2

Exothermic

Answer 2

Delta H is less than 0

Question 3

If endothermic:

What happens is I remove a product? Add a product?

Answer 3

R: process will move to right

A: process will move to the left

Question 4

If endothermic:

What happens if I remove a reactant? Add reactant?

Answer 4

R: process will proceed to the left

A: process will proceed to the left

Question 5

If endothermic:

What happens if I increase container volume? Decrease volume?

Answer 5

I: reaction will proceed to the side of the reaction that has the most moles

D: reaction will proceed to the side of the reaction that has the least moles

Question 6

If endothermic:

What happens if I increase the pressure of the system? Decrease?

Answer 6

I: container volume decreases; reaction will proceed to side that has the least amount of moles

D: container volume increases; reaction will proceed to side that has the most amount of moles

Question 7

If endothermic:

What happens if I increase the heat of the system? Decrease?

Answer 7

I: proceed to the right; endothermic process shall absorb heat

D: proceed to the left; exothermic process shall release heat

Question 8

If endothermic:

What happens if I add a catalyst?

Answer 8

reaction will happen quickly towards equilibrium; but reaction will not favor one side over the other

Question 9

If Q < K…

Answer 9

equilibrium reached by formation of products

Question 10

If Q = K…

Answer 10

equilibrium is reached

Question 11

If Q > K…

Answer 11

reverse reaction occurs to reach equilibrium