Equilibria (6) 🫧

Question 1

What are the indices in an eq constant equation?

Answer 1

Stoichiometry numbers (large numbers)

Question 2

How do you find the units for a Kc calc?

Answer 2

Each is mol dm^-3.
Do algebra type equation.
Eg. 2A + B <—> 2C
So ((mol dm^-3)^2) divided by (mol dm^-3 x (mol dm^-3)^2)
= 1/mol dm^-3
= mol^-1 dm^3

Question 3

What do the square brackets mean?

Answer 3

Concentration of…

Question 4

What’s the effect of increasing the temperature on the Kc and equilibrium?

Answer 4

ENDO= Kc would increase, products would increase, reactants would decrease, eq moves right
EXO= Kc would decrease, products would decrease, reactants would increase, eq moves left

Question 5

What’s the effect on decreasing the temperature on the Kc and the eq?

Answer 5

ENDO= Kc decreases, products decrease, reactants increase, eq moves left
EXO= Kc increases, products increase, reactants increase, eq moves right

Question 6

What effect does a catalyst have on Kc

Answer 6

No effect