DP Chemistry (first assessment 2025)
Question 22M.2.SL.TZ1.a(ii)
| Date | May 2022 | Marks available | [Maximum mark: 1] | Reference code | 22M.2.SL.TZ1.a(ii) |
| Level | SL | Paper | 2 | Time zone | TZ1 |
| Command term | State | Question number | a(ii) | Adapted from | N/A |
a(ii).
[Maximum mark: 1]
22M.2.SL.TZ1.a(ii)
State how the use of a catalyst affects the position of the equilibrium.
[1]
Markscheme
same/unaffected/unchanged ✔
Examiners report
Good performance; however, some misread the question as asking for the effect of a catalyst on equilibrium, rather than on the position of equilibrium.
Syllabus sections
Reactivity 2. How much, how fast and how far? » Reactivity 2.3—How far? The extent of chemical change » Reactivity 2.3.4—Le Châtelier’s principle enables the prediction of the qualitative effects of changes in concentration, temperature and pressure to a system at equilibrium. Apply Le Ch.telier’s principle to predict and explain responses to changes of systems at equilibrium.