Chemical Equilibrium

Question 1

Define reversible reaction

Answer 1

A reaction in which products can be changed back to the original reactants

Question 2

Define dynamic equilibrium

Answer 2

The state of a reversible reaction carried out in a closed system where the rates of forward reaction and backward reaction are equal and constant. Concentration of reactants and products are constant.

Question 3

Define Le Chatelier’s Principle

Answer 3

If a change is made to a system at dynamic equilibrium, the position of the equilibrium moves to minimise the change.

Question 4

Define acid

Answer 4

Substance that donates proton. (H+)

Question 5

Define base

Answer 5

Substance that receives/ accepts proton (H+)

Question 6

Define conjugate acid

Answer 6

Conjugate acid is a base that accepts a proton

Question 7

Define conjugate base

Answer 7

Conjugate base is an acid that donates a proton

Question 8

Define strong acid

Answer 8

Acid that dissociates completely in aqueous solution

Question 9

Define weak acid

Answer 9

Acid that dissociates partially in aqueous solution