Question

For each stress, numbered 1,2, 3 on the graph, describe what has occurred and explain why the graph changed the way it did.

Answer 1

have you attempted the question?

Answer 2

yes

Answer 3

what were your results?

Answer 4

1) You can see that both concentrations of the products increased at (1) while the reagent NOCl decreased. Le Chatalier's Principle says that if you have a system at equilibrium, and a stress is applied to the system, then the system will react to relieve that stress. If the concentrations of the products increased then that means something happened to left side of the equation (reagents) which we can assume as heat was added to the mixture. The addition of heat puts stress on the balanced system toward the left side of the reaction, so the equilibrium shifts to the right to relieve the stress and produces more products.

2)The accumulation of excess product (due to the above addition of heat) on the right side of the equation will in turn mean that the equilibrium will shift back to the left side of the equation. This is what happens at point 2, as you can see both products peak then decline while the reagent concentration begins to increase.

3)The concentration of Cl2 increased thus the system will gradually decrease NOCL and gradually increase NO and Cl2

Not sure if right or wrong..