DP Chemistry (first assessment 2025)

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Question SPM.1A.SL.TZ0.23

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Date May Specimen-2023 Marks available [Maximum mark: 1] Reference code SPM.1A.SL.TZ0.23
Level SL Paper 1A Time zone TZ0
Command term Question number 23 Adapted from N/A
23.
[Maximum mark: 1]
SPM.1A.SL.TZ0.23

What is the main reason for an increase in rate of reaction when the temperature is raised?


A.  A greater proportion of collisions are successful.

B.  Particles collide more frequently.

C.  The bonds in the reactants are weakened.

D.  The activation energy of the reaction decreases.

[1]

Markscheme

A