DP Chemistry (last assessment 2024)
Question 21M.1.sl.TZ1.15
| Date | May 2021 | Marks available | [Maximum mark: 1] | Reference code | 21M.1.sl.TZ1.15 |
| Level | sl | Paper | 1 | Time zone | TZ1 |
| Command term | Derive | Question number | 15 | Adapted from | N/A |
15.
[Maximum mark: 1]
21M.1.sl.TZ1.15
What is the enthalpy change of the reaction, in kJ?
2C (graphite) + O2 (g) → 2CO (g)
A. −394 − 283
B. 2(−394) + 2(−283)
C. −394 + 283
D. 2(−394) + 2(283)
[1]
Markscheme
D