| Date | May 2013 | Marks available | 1 | Reference code | 13M.1.hl.TZ1.20 |
| Level | HL | Paper | 1 | Time zone | TZ1 |
| Command term | Deduce | Question number | 20 | Adapted from | N/A |
Question
For the gas phase reaction:
\[{\text{A(g)}} + {\text{B(g)}} \to {\text{C(g)}}\]
the experimentally determined rate expression is: rate \( = k[{\text{A}}]{[{\text{B}}]^2}\)
By what factor will the rate change if the concentration of A is tripled and the concentration of B is halved?
A. 0.75
B. 1.5
C. 6
D. 12
Markscheme
A
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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