DP Chemistry (last assessment 2024)

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Question 19M.1.hl.TZ1.17

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Date May 2019 Marks available [Maximum mark: 1] Reference code 19M.1.hl.TZ1.17
Level hl Paper 1 Time zone TZ1
Command term Question number 17 Adapted from N/A
17.
[Maximum mark: 1]
19M.1.hl.TZ1.17

Which equation represents the standard enthalpy of atomization of bromine, Br2?

A. 1 2 Br2 (l) → Br (g)

B. Br2 (l) → 2Br (g)

C. Br2 (l) → 2Br (l)

D. 1 2 Br2 (l) → Br (l)

[1]

Markscheme

A

Examiners report

One G2 comment asked if enthalpy of atomization was on the syllabus. This Topic 15.1 question was answered correctly by 54 % of candidates but did not differentiate well between higher and lower scoring candidates.

Syllabus sections