Equilibrium

Question 1

Equilibrium

Answer 1

is the state of balance between 2 opposite reactions occurring at the same time; state us dynamic (changing)

Question 2

Most Reactions are…

Answer 2

reversible and must take place in a closed system

Question 3

Equilibrium is reached when reaction rates:

Answer 3

forward and reverse are equal

Question 4

Point of equilibrium is affected by:

Answer 4

temp change, change in concentration, change in pressure (on gases)

Question 5

A reaction is non - reversible when:

Answer 5

• a product is removed
• a product is a gas and the gas escapes
• a product is a precipitate (insoluable) and cannot react again
• a product is water

Question 6

Solubility

Answer 6

Mass of solute (solid) which can
dissolve in a given amount of solvent.

Question 7

Le Chatelier’s Principle

Answer 7

If a chemical system at equilibrium is
disturbed it will to change (SHIFT) in the
direction to relieve the stress.

Question 8

Spontaneous Reactions

Answer 8

A reaction that when initiated with continue without any
outside influence.

Spontaneous Reactions are more favorable when:

1) Reactions are Exothermic- lower activation energy

& Loss of energy (more stable state)

2) Increase in Entropy- Increase in Disorder