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Date May 2011 Marks available 1 Reference code 11M.1.hl.TZ1.15
Level HL Paper 1 Time zone TZ1
Command term Deduce Question number 15 Adapted from N/A

Question

When hydrogen peroxide decomposes, the temperature of the reaction mixture increases.

\[{\text{2}}{{\text{H}}_{\text{2}}}{{\text{O}}_{\text{2}}}{\text{(aq)}} \to {{\text{O}}_{\text{2}}}{\text{(g)}} + {\text{2}}{{\text{H}}_{\text{2}}}{\text{O(l)}}\]

What are the signs of \(\Delta H\), \(\Delta S\) and \(\Delta G\) for this reaction?

M11/4/CHEMI/HPM/ENG/TZ1/15

Markscheme

B

Examiners report

[N/A]

Syllabus sections

Additional higher level (AHL) » Topic 15: Energetics/thermochemistry » 15.2 Entropy and spontaneity
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