Rates of ReactionTopic Summary
Topic Summary: Reversible Reactions
Part of Reversible Reactions — GCSE Chemistry
This topic summary covers Topic Summary: 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 12 of 12 in this topic. Use this topic summary to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 12 of 12
Practice
20 questions
Recall
12 flashcards
Topic Summary: Reversible Reactions
Key Terms
- Reversible reaction — uses ⇌ symbol
- Forward reaction — left to right
- Backward reaction — right to left
- Closed system — nothing enters or leaves
Energy Rule
- Forward exo = Backward endo
- Forward endo = Backward exo
- Energy values are equal in magnitude
Copper Sulfate Test
- Blue (hydrated) ⇌ White (anhydrous)
- Heating → endothermic → white
- Add water → exothermic → blue
- Detects water presence
Common Errors
- Using → not ⇌ in reversible equations
- Saying forward AND backward are exothermic
- Thinking products reach 100%