DP Chemistry (first assessment 2025)

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Question 19N.1A.HL.TZ0.24

Date	November 2019	Marks available	[Maximum mark: 1]	Reference code	19N.1A.HL.TZ0.24
Level	HL	Paper	1A	Time zone	TZ0
Command term	State	Question number	24	Adapted from	N/A

24.

[Maximum mark: 1]

19N.1A.HL.TZ0.24

Which corresponds to a system at equilibrium?

[1]

Markscheme

B

Syllabus sections

Reactivity 2. How much, how fast and how far? » Reactivity 2.3—How far? The extent of chemical change » Reactivity 2.3.4—Le Châtelier’s principle enables the prediction of the qualitative effects of changes in concentration, temperature and pressure to a system at equilibrium. Apply Le Ch.telier’s principle to predict and explain responses to changes of systems at equilibrium.