DP Chemistry (last assessment 2024)

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Question 22N.1.hl.TZ0.21

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Date November 2022 Marks available [Maximum mark: 1] Reference code 22N.1.hl.TZ0.21
Level hl Paper 1 Time zone TZ0
Command term State Question number 21 Adapted from N/A
21.
[Maximum mark: 1]
22N.1.hl.TZ0.21

The activation energy of a reaction can be obtained from the rate constant, k, and the absolute temperature, T. Which graph of these quantities produces a straight line?


A.  k against T

B.  k against 1T

C.  ln k against T

D.  ln k against 1T

[1]

Markscheme

D

Examiners report

Over 80% of candidates correctly identified the variables that should be plotted to determine activation energy from rate data, with the other distractors being about equally favoured.

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