Thermodynamics(AQA A-Level)

Thermodynamics (AQA 3.1.8) is the powerhouse topic of A-Level Chemistry, combining Born-Haber cycles — which reveal the true strength of ionic bonds through Hess's Law — with Gibbs Free Energy, the ultimate arbiter of whether a reaction can actually occur. Mastering this topic means understanding not just the maths, but the deep physical reasoning behind why ionic compounds form, why some reactions only happen at high temperatures, and why real ionic compounds deviate from the perfect ionic model. Examiners consistently reward candidates who can apply ΔG = ΔH − TΔS with precision and explain covalent character with chemical insight. Listen to this audio revision guide for Thermodynamics. Test your knowledge with interactive exam questions and flashcards at https://masterymind.co.uk/study-guides/chemistry-aqa-a-level-thermodynamics.