Equilibrium

Type your answer to Part (a), Part (b) and Part (c) of this question in the box below.

The following question refers to the equilibrium described by:

2NOBr_(g) 2NO_(g) + Br_2(g)

The top graph below shows the change in equilibrium concentration of NOBr when more NOBr is added to the reaction.

(a) The corresponding curves for NO and Br₂ have been drawn, showing the relative changes in their concentrations in terms of x. Explain these changes. (2 marks)

(b) The following question refers to the equilibrium described by:

2NOBr_(g) 2NO_(g) + Br_2(g) H > 0

The reaction as written is endothermic.

After the system was allowed to reach equilibrium, the temperature was decreased.

What would happen to the concentration of concentration of Br₂ as a result of this change? Explain your answer, making reference to the equilibrium. (2 marks)

(c) The following question refers to the equilibrium described by:

2NOBr_(g) 2NO_(g) + Br_2(g)

_{After the system was allowed to reach equilibrium, the volume of the reaction container was decreased.}

What would happen to the concentration of concentration of NOBr as a result of this change? Explain your answer, making reference to the equilibrium.

PLEASE BEIRFLY AND TYPE THE ANSWER (DON'T HAND WRITE IT)

Concentration 2x NOBr 2x NO Br2 X Time NOBO added Equilibrium re-established