C13 Equilibrium [Paper 2]

Question 1

What is a reversible reaction?

Answer 1

The reactants turn into products and the products turn into reactants

Question 2

Which symbol shows a reversible reaction?

Answer 2

—>
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Question 3

What is dynamic equilibrium?

Answer 3

The point in a reversible reaction when the rate of fluid and reverse reactions are the same

Question 4

What are the three reaction conditions that can be changed?

Answer 4

Concentration, temperature, pressure

Question 5

What is Le Châtelier’s principle?

Answer 5

The position of equilibrium will shift to oppose external changes

Question 6

What is the effect of increasing the concentration of reactants on a reaction at dynamic equilibrium?

Answer 6

Favours the forward reaction

Question 7

What is the effect of decreasing the concentration of products on a reaction at dynamic equilibrium?

Answer 7

Favours the forward reaction

Question 8

What is the effect of increasing pressure on a reaction at dynamic equilibrium?

Answer 8

Favours the reaction that leads to the fewest molecules (shifts to the side with less moles)

Question 9

What is the effect of decreasing pressure on a reaction at dynamic equilibrium?

Answer 9

Favours the reaction that leads to the most molecules (shifts to the side with more moles)

Question 10

What is the effect of increasing temperature on a reaction at dynamic equilibrium?

Answer 10

Favours the endothermic reaction

Question 11

What is the effect of decreasing temperature on a reaction at dynamic equilibrium?

Answer 11

Favour is the exothermic reaction