DP Chemistry (last assessment 2024)

Test builder »

Question 22N.1.sl.TZ0.17

Select a Test
Date November 2022 Marks available [Maximum mark: 1] Reference code 22N.1.sl.TZ0.17
Level sl Paper 1 Time zone TZ0
Command term Determine Question number 17 Adapted from N/A
17.
[Maximum mark: 1]
22N.1.sl.TZ0.17

Which changes would increase the rate of an exothermic reaction?


[1]

Markscheme

A

Examiners report

This question had a poor discrimination index as it appears to have confused the high-scoring candidates. Half of the candidates selected an increase in temperature and a decrease in particle size to increase the rate of an exothermic reaction. The most commonly chosen distractor was a decrease in temperature and particle size.

Syllabus sections