Module 4 | Drivers of reactions
Content 2: Enthalpy and Hess's Law
Lesson 1 | Enthalpy changes in reactions
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explain the enthalpy changes in a reaction in terms of breaking and reforming bonds and relate this to:
– the law of conservation of energy
Lesson 2 | Investigating Hess’ law
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investigate Hess’s Law in quantifying the enthalpy change for a stepped reaction using standard enthalpy change data and bond energy data, for example: (ACSCH037)
– carbon reacting with oxygen to form carbon dioxide via carbon monoxide
Lesson 3 | Applying Hess’ law
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apply Hess’s Law to simple energy cycles and solve problems to quantify enthalpy changes within reactions including but not limited to:
– heat of combustion
– enthalpy changes involved in photosynthesis
– enthalpy changes involved in respiration (ACSCH037)
