DP Chemistry (last assessment 2024)

Question 20N.1.hl.TZ0.16

Date	November 2020	Marks available	[Maximum mark: 1]	Reference code	20N.1.hl.TZ0.16
Level	hl	Paper	1	Time zone	TZ0
Command term	Apply	Question number	16	Adapted from	N/A

16.

[Maximum mark: 1]

20N.1.hl.TZ0.16

Which combination gives the standard hydration enthalpy of ${Na}^{+} (g)$ ?

A. $4 + 359 + 790$

B. $4 + 359 - 790$

C. $- 4 - 359 + 790$

D. $4 - 359 + 790$

[1]

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Examiners report

About 60% of candidates could select values to put in an energy cycle for hydration enthalpy. The higher scoring candidates performed better on this question than lower scoring ones.

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Additional higher level (AHL)

Additional higher level (AHL) » Topic 15: Energetics/thermochemistry » 15.1 Energy cycles

Additional higher level (AHL) » Topic 15: Energetics/thermochemistry

Question 20N.1.hl.TZ0.16

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