| Date | November 2017 | Marks available | 1 | Reference code | 17N.1.hl.TZ0.21 |
| Level | HL | Paper | 1 | Time zone | TZ0 |
| Command term | Question number | 21 | Adapted from | N/A |
Question
The rate expression for the reaction X (g) + 2Y (g) → 3Z (g) is
rate = k[X]0 [Y]2
By which factor will the rate of reaction increase when the concentrations of X and Y are both increased by a factor of 3?
A. 6
B. 9
C. 18
D. 27
Markscheme
B
Examiners report
[N/A]
Syllabus sections
Additional higher level (AHL) » Topic 16: Chemical kinetics » 16.1 Rate expression and reaction mechanism
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