Topic 10 - Equilibrium

Question 1

Defiition of Dynamic Equilibrium

Answer 1

Dynamic equilibrium occurs when the forward and backward reaction are occuring at the same rate. The concentrations of he reactancts and the products stay constant and the reaction is contnuous.

Question 2

Equation for Kc

Answer 2

Kc = [C]^x [D]^y / [A]^m [B]^n

Question 3

How to calculate Kc (4 Steps)

Answer 3

1. Write equation
2. Draw table to amount of moles used
3. Calculate concentration at equilibrium ( conc = moles/vol)
4. Plug in values to equiation.

Question 4

Equation for Partial Pressure

Answer 4

PP = Mole fraction * total pressure

Question 5

Eqation for mole fraction

Answer 5

Number of moles of a gas / Total number of moles of all gases

Question 6

Equation for Kp

Answer 6

Kp = p NH3^2 / p N2 p^3H2

Question 7

Effetcs on Kc and Kp

Answer 7

Kc and Kp only chnage with temperature.

The larger the Kc the greater the products. If Kc stays small we say the equilibrium favours the reactants.