1.6 Equlibria

Question 1

Define a dynamic equlibrium

Answer 1

An equlibrium where the forward and backward reactions are occuring at the same rate and the concentration of each reactant is constant.

Question 2

State Le Chatelier’s priciple

Answer 2

If a system at equlibrium is disturbed, the position of equlibrium is the direction that tends to reduce the disturbance.

Question 3

If the forward reaction in a dynamic equlibrium is endothermic and the temperature is lowered, what is the effect on Kc?

Answer 3

It will decrease as the concentration of products is lowered and concentration of reactants increase meaning the fractions is smaller.

Question 4

If the forward reaction in a dynamic equlibrium is exothermic and the temperature is lowered, what is the effect on Kc?

Answer 4

It will increase as the concentration of products is raised and concentration of reactants falls meaning the fractions is larger.

Question 5

If Kc is greater than 1, what does that mean about the concentrations of products and reactants?

Answer 5

There is a higher concentration of products than reactants.