DP Chemistry (last assessment 2024)
Question 21M.1.hl.TZ2.23
| Date | May 2021 | Marks available | [Maximum mark: 1] | Reference code | 21M.1.hl.TZ2.23 |
| Level | hl | Paper | 1 | Time zone | TZ2 |
| Command term | Apply | Question number | 23 | Adapted from | N/A |
23.
[Maximum mark: 1]
21M.1.hl.TZ2.23
Sulfur dioxide reacts with oxygen to form sulfur trioxide.
2SO2 (g) + O2 (g) 2SO3 (g) ΔH = −197 kJ
Which change increases the value of Kc?
A. increasing the temperature
B. decreasing the temperature
C. decreasing [SO2 (g)]
D. decreasing [SO3 (g)]
[1]
Markscheme
B