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Year 11 Chemistry

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Module 4 | Drivers of reactions

Content 3: Entropy and Gibbs free energy

Lesson 1 | Entropy

  • analyse the differences between entropy and enthalpy

  • use modelling to illustrate entropy changes in reactions

  • predict entropy changes from balanced chemical reactions to classify as increasing or decreasing entropy

Lesson 2 | Gibbs free energy

  • explain reaction spontaneity using terminology, including: (ACSCH072)
    – Gibbs free energy
    – enthalpy
    – entropy

  • solve problems using \Delta Go\; = \; \Delta Ho\; -\; T\Delta So (Gibbs free energy formula) to classify reactions as spontaneous or non-spontaneous

  • predict the effect of temperature changes on spontaneity (ACSCH070)

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