DP Chemistry (last assessment 2024)
Question 21N.1.sl.TZ0.19
| Date | November 2021 | Marks available | [Maximum mark: 1] | Reference code | 21N.1.sl.TZ0.19 |
| Level | sl | Paper | 1 | Time zone | TZ0 |
| Command term | Deduce | Question number | 19 | Adapted from | N/A |
19.
[Maximum mark: 1]
21N.1.sl.TZ0.19
The equilibrium 2H2 (g) + N2 (g) N2H4 (g) has an equilibrium constant, K, at 150 °C.
What is the equilibrium constant at 150 °C, for the reverse reaction?
N2H4 (g) 2H2 (g) + N2 (g)
A. K
B. K−1
C. −K
D. 2K
[1]
Markscheme
B