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Date May 2009 Marks available 1 Reference code 09M.1.hl.TZ2.18
Level HL Paper 1 Time zone TZ2
Command term Deduce Question number 18 Adapted from N/A

Question

What is the standard entropy change, \(\Delta {S^\Theta }\), for the following reaction?

\[{\text{2CO(g)}} + {{\text{O}}_2}{\text{(g)}} \to {\text{2C}}{{\text{O}}_2}{\text{(g)}}\]

M09/4/CHEMI/HPM/ENG/TZ2/18

A.     –189

B.     –173

C.     +173

D.     +189

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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