Energy and Thermodynamics · Thermodynamics

Hess's Law and Bond Enthalpies

Calculating reaction enthalpies using indirect methods and average bond energy data.

Key Questions

  1. 1How does Hess's Law demonstrate the law of conservation of energy?
  2. 2Why are average bond enthalpies less accurate than specific experimental data?
  3. 3How can we predict the heat of combustion for different fuels?

ACARA Content Descriptions

AC9S12U02
Year: Year 11
Subject: Chemistry
Unit: Energy and Thermodynamics
Period: Thermodynamics

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