Energetics: Born-Haber Cycles, Entropy and Gibbs Free Energy · Semester 1
Hess's Law, Calorimetry and Enthalpy Cycles
Students will conduct simple experiments to measure temperature changes during chemical reactions and interpret the results.
Key Questions
- Apply Hess's Law to calculate the standard enthalpy change of a reaction that cannot be measured directly, justifying the validity of the indirect thermochemical route.
- Analyse the systematic and random errors in a calorimetry experiment and evaluate their quantitative effect on the calculated enthalpy of neutralisation, including a heat-loss correction.
- Compare standard enthalpies of combustion across a homologous series of alcohols, explaining the trend using bond enthalpy data and identifying deviations from linearity.
MOE Syllabus Outcomes
MOE: Experimental Chemistry - MSMOE: Data Collection - MS
Level: JC 2
Subject: Chemistry
Unit: Energetics: Born-Haber Cycles, Entropy and Gibbs Free Energy
Period: Semester 1
Suggested Methodologies
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