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Date May 2011 Marks available 1 Reference code 11M.1.hl.TZ2.18
Level HL Paper 1 Time zone TZ2
Command term State Question number 18 Adapted from N/A

Question

Which change will not increase the entropy of a system?

A.     Increasing the temperature

B.     Changing the state from liquid to gas

C.     Mixing different types of particles

D.     A reaction where four moles of gaseous reactants changes to two moles of gaseous products

Markscheme

D

Examiners report

[N/A]

Syllabus sections

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