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Date May 2014 Marks available 1 Reference code 14M.1.hl.TZ1.17
Level HL Paper 1 Time zone TZ1
Command term Question number 17 Adapted from N/A

Question

Which reaction has the greatest increase in entropy?

A.     2CH3OH(l)+3O2(g)2CO2(g)+4H2O(l)

B.     N2(g)+3H2(g)2NH3(g)

C.     2HCl(aq)+MgCO3(s)MgCl2(aq)+H2O(l)+CO2(g)

D.     NH3(g)+HCl(g)NH4Cl(s)

Markscheme

C

Examiners report

[N/A]

Syllabus sections

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