Key Facts: Energy in Reversible Reactions
Part of Reversible Reactions — GCSE Chemistry
This key facts covers Key Facts: Energy in Reversible Reactions within Reversible Reactions for GCSE Chemistry. Revise Reversible Reactions in Rates of Reaction for GCSE Chemistry with 20 exam-style questions and 12 flashcards. This topic appears regularly enough that it should still be part of a steady revision cycle. It is section 5 of 12 in this topic. Use this key facts to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 5 of 12
Practice
20 questions
Recall
12 flashcards
📌 Key Facts: Energy in Reversible Reactions
If the forward reaction is EXOTHERMIC...
...then the backward reaction is ENDOTHERMIC (and vice versa)
The energy released going forward = the energy absorbed going backward
Example: Hydration of copper sulfate
CuSO₄·5H₂O(s) ⇌ CuSO₄(s) + 5H₂O(g)
← Add water (exothermic, gets hot) | Heat → (endothermic, needs heat)