Energy Changes & Reversible Reactions (AQA GCSE Chemistry): Flashcards

📚Flashcards
Revision NotesModel AnswersQuizzesFlashcardsExam Questions
Energy Changes & Reversible Reactions
Sign up to keep revising.Create a free account to study more flashcards and track your progress.

Practise the cards

10 cards from this deck

Show

Energy changes in reversible reactions

Opposing (forward vs backward)

Backward reaction if forward is exothermic

Endothermic

Backward reaction if forward is endothermic

Exothermic

Definition: exothermic reaction

Transfers energy to surroundings

Definition: endothermic reaction

Absorbs energy from surroundings

Bond energy reason for exothermic reaction

More energy released forming bonds than absorbed breaking them

Bond energy reason for endothermic reaction

More energy needed to break bonds than released forming them

H2H_2 + I2I_2 → HIHI reaction type

Exothermic

HIHI → H2H_2 + I2I_2 reaction type

Endothermic

Energy change of reverse reaction vs forward

Always opposite

Explore AQA GCSE Chemistry Revision Notes by Topics

Rate of Reaction

Reversibility & Equilibrium

Explore AQA GCSE Chemistry Model Answers by Topics

Rate of Reaction

Reversibility & Equilibrium

Explore AQA GCSE Chemistry Quizzes by Topics

Rate of Reaction

Reversibility & Equilibrium

Explore AQA GCSE Chemistry Exam Questions by Topics

Rate of Reaction

Reversibility & Equilibrium

Join 100,000+ GCSE students studying Flashcards with us.

Select your subjects, and get access to A+ resources today.