DP Chemistry (last assessment 2024)

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Question 22M.2.hl.TZ2.a(i)

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Date May 2022 Marks available [Maximum mark: 1] Reference code 22M.2.hl.TZ2.a(i)
Level hl Paper 2 Time zone TZ2
Command term Deduce Question number a(i) Adapted from N/A
a(i).
[Maximum mark: 1]
22M.2.hl.TZ2.a(i)

Hydrogen and iodine react to form hydrogen iodide.

H2 (g) + I2 (g) ⇌ 2HI (g)

The following experimental data was obtained.

Deduce the order of reaction with respect to hydrogen.

[1]

Markscheme

first order ✔

Examiners report

4(a)(i)-(iii): Deduction of rate orders and rate expression were very well done overall, with occasional errors in the units of the rate constant, but clearly among the best answered questions.

Syllabus sections