(A) Topic 6 - Equilibria

Question 1

How does increasing the temperature affect an equilibrium?

Answer 1

Moves to the endothermic direction

Question 2

How does decreasing the temperature affect an equilibrium?

Answer 2

Moves to the exothermic direction

Question 3

How does increasing pressure affect an equilibrium?

Answer 3

moves to the side with the fewest moles of gaseous atoms

Question 4

How does decreasing pressure affect an equilibrium?

Answer 4

Moves to the side with the most moles of gaseous atoms

Question 5

How does increasing the amount of reactants affect an equilibrium?

Answer 5

moves in the forward direction

Question 6

How does decreasing the amount of reactants affect an equilibrium?

Answer 6

Moves in the reverse direction

Question 7

How does adjusting surface area or adding a catalyst affect an Equilibrium?

Answer 7

The Equilibrium does not shift, the reaction just speeds up and reaches equilibrium more quickly.

Question 8

What does it mean if Kc >1

Answer 8

The concentration of products is greater thatn the concentration of reactants, and so the equilibrium lies to the right hand side

Question 9

What does it mean if Kc<1

Answer 9

Then the concentration of reactants is greater than the concentration of products, and the equilibrium lies to the left hand side.