Edexcel IAL Chemistry A2 12.6 Total entropy change
Edexcel IAL Chemistry A2 12.6 Total entropy change
Write ΔStotal = ΔSsystem + ΔSsurroundings, convert kJ and J before adding and retain the sign and J K⁻¹ mol⁻¹ units in the final value.
How this is tested
- Calculate ΔStotal by adding system and surroundings entropy changes with signs and units.
- Rearrange the total-entropy equation to find a missing system or surroundings value.