DP Chemistry (last assessment 2024)
Question 21N.2.hl.TZ0.3c(vi)
| Date | November 2021 | Marks available | [Maximum mark: 1] | Reference code | 21N.2.hl.TZ0.3c(vi) |
| Level | hl | Paper | 2 | Time zone | TZ0 |
| Command term | Justify, State | Question number | c(vi) | Adapted from | N/A |
c(vi).
[Maximum mark: 1]
21N.2.hl.TZ0.3c(vi)
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(vi))
State, with a reason, the effect of an increase in temperature on the position of this equilibrium.
[1]
Markscheme
«shifts» left/towards reactants AND «forward reaction is» exothermic/ΔH is negative ✔
