DP Chemistry (last assessment 2024)
Question 19M.1.hl.TZ2.22
| Date | May 2019 | Marks available | [Maximum mark: 1] | Reference code | 19M.1.hl.TZ2.22 |
| Level | hl | Paper | 1 | Time zone | TZ2 |
| Command term | Question number | 22 | Adapted from | N/A |
22.
[Maximum mark: 1]
19M.1.hl.TZ2.22
Consider the following equilibrium reaction.
2N2O (g) + O2 (g) 4NO (g) ΔH = +16 kJ
Which change will move the equilibrium to the right?
A. Decrease in pressure
B. Decrease in temperature
C. Increase in [NO]
D. Decrease in [O2]
[1]
Markscheme
A
Examiners report
77 % of the candidates applied Le Chatelier’s Principle correctly. The question had a high discrimination index.