The effect of concentration
3 marks · EasyThe following reversible reaction is at equilibrium in a closed container:
A chemist removes some G(g) from the equilibrium mixture.
State how the position of equilibrium will change.
Give a reason for your answer in (a).
Name the principle that explains your answer.
Work this out on paper, then compare with the answer and worked solution below. With a free account you can submit written answers for marking.
Show answer
(a) The equilibrium shifts to the right (towards products).
(b) The system replaces the removed G by making more G from E and F.
(c) Le Chatelier's principle
Show mark scheme and worked solution
Marking points
A1 (a) · 1 mark · Correctly states that equilibrium shifts to the right/toward products.
A2 (b) · 1 mark · States reason: system replaces G by making more G/reactants form more products.
A3 (c) · 1 mark · Names Le Chatelier's principle.
Worked solution
(a) The equilibrium shifts to the right.
(b) The system will respond by making more G to replace what was removed, so E and F react further to form more G.
(c) This effect is explained by Le Chatelier's principle.