DP Chemistry (last assessment 2024)
Question 21N.1.hl.TZ0.16
| Date | November 2021 | Marks available | [Maximum mark: 1] | Reference code | 21N.1.hl.TZ0.16 |
| Level | hl | Paper | 1 | Time zone | TZ0 |
| Command term | Derive | Question number | 16 | Adapted from | N/A |
16.
[Maximum mark: 1]
21N.1.hl.TZ0.16
Consider the Born–Haber cycle for the formation of sodium oxide:
What is the lattice enthalpy, in kJ mol−1, of sodium oxide?
A. 414 + 2(108) + 249 + 2(496) − 141 + 790
B. 414 + 2(108) + 249 + 2(496) + 141 + 790
C. −414 + 2(108) + 249 + 2(496) − 141 + 790
D. −414 − 2(108) − 249 − 2(496) + 141 − 790
[1]
Markscheme
A