Chemical Equilibrium

Question 1

Dynamic equilibrium

Answer 1

When both reactions are occurring but the rate of the forward reaction is equal to the rate of the reverse reaction, provided the system is closed

Question 2

Closed system

Answer 2

One where no matter and energy is exchanged with the environment

Question 3

Yield

Answer 3

Measure of the extent of a reaction, generally measured by comparing the amount of product against the amount of product that is possible

Question 4

Le chatelier’s principle

Answer 4

When an external stress (change in pressure, temperature or concentration) is applied to a system in chemical equilibrium, the equilibrium point will change in such a way as to (partially) counteract the stress.

Question 5

Dimerise

Answer 5

Special type of reaction involving the combination of 2 simpler identical molecules to form a compound

Question 6

The common ion effect

Answer 6

Is a solution contains an ion, which is common to the system that is in equilibrium, is added to an equilibrium mixture then the reaction that consumes that ion is favored

Question 7

Chemical equilibrium

Answer 7

The state in which both reactants and products are present in concentrations which have no further tendency to change with time