DP Chemistry (last assessment 2024)
Question 21N.2.sl.TZ0.3c(ii)
| Date | November 2021 | Marks available | [Maximum mark: 1] | Reference code | 21N.2.sl.TZ0.3c(ii) |
| Level | sl | Paper | 2 | Time zone | TZ0 |
| Command term | State | Question number | c(ii) | Adapted from | N/A |
c(ii).
[Maximum mark: 1]
21N.2.sl.TZ0.3c(ii)
White phosphorus is an allotrope of phosphorus and exists as P4.
An equilibrium exists between PCl3 and PCl5.
PCl3 (g) + Cl2 (g) PCl5 (g)
(c(ii))
State the equilibrium constant expression, Kc, for this reaction.
[1]
Markscheme
«Kc =» ✔
