Equillibrium

Question 1

What is dynamic equillibrium

Answer 1

Concentrations of reactants and products remain constant
Forward and backwards reaction is happening at the same rate

Question 2

What is Le Chateliers principle

Answer 2

If a factor is changed which effects a system in equilibrium the position of equilibrium will shift to reduce effect of disturbance.

Question 3

Effect of catalyst on equillibrium

Answer 3

Has no effect as lowers activation energy equally for both the forwards and backwards reaction

Question 4

How does temperature effect kc

Answer 4

Exothermic reaction- increased temperature shifts equillibrium left
Kc decreases
Endothermic reaction- increased temperature shifts equillibrium right
Kc increases

Question 5

Why does pressure and volume not effect kc

Answer 5

Decrease in volume or increased pressure shifts equillibrium to side with fewer moles of gas to oppose pressure increase.