D1.3 Chemical energetics: Pearson BTEC National Applied Science (AAQ) Questions

Practise d1.3 chemical energetics with Pearson BTEC National Applied Science (AAQ) questions and mark schemes. Revise D1.3.1 enthalpy change – definition, endothermic and exothermic processes, D1.3.2 energy level diagrams and reaction profile diagrams for exothermic and endothermic reactions, D1.3.3 standard enthalpy changes –standard conditions and definitions of standard enthalpy change of formation, of combustion and of reaction.

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What to revise

• D1.3.1 enthalpy change – definition, endothermic and exothermic processes
• D1.3.2 energy level diagrams and reaction profile diagrams for exothermic and endothermic reactions
• D1.3.3 standard enthalpy changes –standard conditions and definitions of standard enthalpy change of formation, of combustion and of reaction
• D1.3.4 Hess’s Law and energy cycles
• D1.3.5 calculations involving energy cycles and standard enthalpy changes

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