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Date	May 2013	Marks available	1	Reference code	13M.1.sl.TZ1.20
Level	SL	Paper	1	Time zone	TZ1
Command term	Deduce	Question number	20	Adapted from	N/A

Question

Which changes occur when the temperature is decreased in the following equilibrium?

${\text{2BrCl(g)}} \rightleftharpoons {\text{B}}{{\text{r}}_2}{\text{(g)}} + {\text{C}}{{\text{l}}_2}{\text{(g)}}$ $\,\,\,\,\,$ $\Delta {H^\Theta } = - 14{\text{ kJ}}$

M13/4/CHEMI/SPM/ENG/TZ1/20

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Core » Topic 7: Equilibrium » 7.1 Equilibrium

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15M.2.hl.TZ2.7a.ii: Predict, with a reason, how each of the following changes affects the position of...
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15M.1.sl.TZ2.20: Which combination of temperature and pressure will give the greatest yield of sulfur...
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14M.1.hl.TZ2.8: Which statements explain why a catalyst is used in the Contact process (shown...
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14M.2.hl.TZ2.1f: Outline how adding some ethyl ethanoate to the initial mixture would affect the amount of...
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14M.2.hl.TZ2.5b.iv: Suggest why a covalent molecule, such as chloric(I) acid, is readily soluble in water.
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15M.1.sl.TZ2.19: What is the equilibrium constant expression, ${K_{\text{c}}}$ , for the formation of...
14M.1.sl.TZ1.19: Which statement is correct for a reversible reaction when ${K_{\text{c}}} \gg 1$ ? A. ...
14M.1.sl.TZ1.20: Consider this reaction at equilibrium. ...
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14M.2.sl.TZ1.3b: Explain the effect on the position of the equilibrium and on the value of ${K_{\text{c}}}$ ...
14M.1.sl.TZ2.20: Which is always correct for a reaction at equilibrium?
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14M.2.sl.TZ2.1g: Outline how you could establish that the system had reached equilibrium at the end of one week.
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13N.2.hl.TZ0.6b.ii: Considering the above equilibrium, predict, giving a reason, how adding more acid would...
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13M.2.sl.TZ1.7d.i: Increase in temperature.
13M.2.sl.TZ1.7d.ii: Increase in pressure.
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09N.2.hl.TZ0.6e.i: Deduce the equilibrium constant expression, ${K_{\text{c}}}$ , for the reaction.
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09N.2.sl.TZ0.5a.i: Deduce the equilibrium constant expression, ${K_{\text{c}}}$ , for the reaction.
09N.2.sl.TZ0.5a.iv: Suggest, stating a reason, how the addition of a catalyst at constant pressure and...
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11M.2.sl.TZ1.3b.i: increasing the temperature of the reaction at constant pressure.
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11M.2.sl.TZ1.3b.ii: increasing the pressure of the reaction at constant temperature.
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11M.2.sl.TZ2.6a.ii: Deduce the expression for the equilibrium constant, ${K_{\text{c}}}$ .
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12M.1.sl.TZ2.20: What happens to the position of equilibrium and the value of ${K_{\text{c}}}$ when the...
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11N.2.sl.TZ0.6a.i: Deduce the equilibrium constant expression, ${K_{\text{c}}}$ , for the reaction.
11N.2.sl.TZ0.6a.ii: Predict the direction in which the equilibrium will shift when the following changes...

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