Equilibrium constant&factors affecting

Question 1

What is the general equation for Kc?

Answer 1

aA + bB dD + eE

Kc = [D]ᵈ [E]ᵉ / [A]ᵃ [B]ᵇ

Question 2

What does [ ] show?

Answer 2

Concentration of

Question 3

How do you calculate the units for Kc?

Answer 3

Write the moldm-3 where they would be for each concentration and then cancel them out of the equation

Question 4

What can you do once you have calculated Kc?

Answer 4

Use it to find unknown equilibrium concentrations by rearranging the original equation

Question 5

If the change in temperature causes more product to be formed, what will happen to the value of Kc?

Answer 5

Increase

Question 6

If the change in temperature causes less product to be formed, what will happen to the value of Kc?

Answer 6

Decrease

Question 7

What is the value of Kc fixed at?

Answer 7

A given temperature

Question 8

What happens to the value of Kc when the concentration of either reactants or products changes?

Answer 8

It wont change

Fixed at a certain temperature so all of the concentrations will change to keep the value of Kc the same

Question 9

What effect does adding a catalyst have on the value of Kc? Why?

Answer 9

No effect

Increase both the forward and reverse reactants so they cant increase the yield