C7-Chemical Equilibrium

Question 1

Dynamic equilibrium

Answer 1

A chemical state achieved when:

• rate of forward reaction=rate of backward reaction
• quantity of reactants and products remains constant in a closed system

Question 2

Le Chatelier’s principle

Answer 2

If a change is applied to a system in eq.,

eq. shifts in the direction

that counteracts effects of change,

forming new eq.

Question 3

What are Kc affected and not affected by?

Answer 3

Affected by temperature.

Not affected by changes in concentration, pressure, surface area, catalyst.

Question 4

Homogenous condition

Answer 4

Reactants and products coexist in same physical state at equilibrium.

Question 5

Heterogenous condition

Take liquid or gas only for Kc or Kp

Answer 5

Reactants and products in different physical states at equilibrium