DP Chemistry (last assessment 2024)

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Question 18M.2.hl.TZ1.3c.iv

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Date May 2018 Marks available [Maximum mark: 1] Reference code 18M.2.hl.TZ1.3c.iv
Level hl Paper 2 Time zone TZ1
Command term Calculate Question number c.iv Adapted from N/A
c.iv.
[Maximum mark: 1]
18M.2.hl.TZ1.3c.iv

This question is about ethene, C2H4, and ethyne, C2H2.

(c.iv)

Calculate the standard entropy change, ΔSΘ, in J K−1, for the reaction in (ii) using section 12 of the data booklet.

[1]

Markscheme

«ΔSΘ = 173 – 3 ×  201 =» –430 «J K–1»

[1 mark]

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