3.1.6.2 Equilibrium constant Kc for homogeneous systems

Question 1

What is the Equilibrium Constant?

Answer 1

This is used to show the ratio between the products and reactants at equilibrium
This is only true for a ceartain temperature

Question 2

What is the symbol for the equilibrium constant?

Answer 2

Kc

Question 3

What is the equation for Kc?

Answer 3

For the general reaction aA + bB ⇌ dD + eE :
Kc =[D]^d X [E]^e / [A]^a X [B]^b

Question 4

What does the square brackets in the Kc equation mean?

Answer 4

Concentration

Question 5

How does an changing the temperature affect the Kc?

Answer 5

Depending on how the PoE shifts will determine if more product (Kc increases) is formed or less product (Kc decrease) is formed

Question 6

How does a change in concentration affect the Kc?

Answer 6

Remains the same as the reaction will counteract the increase of concentration by making more of other substance keeping the value of Kc the same

Question 7

How does a catalyst affect the Kc?

Answer 7

Catalysts have no effect on the position of equilibrium or the value of Kc as the catalyst will only increase the rate of reaction