Energy Changes & Reversible Reactions (AQA GCSE Chemistry Combined Science): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
In reversible reactions, how do energy changes in forward and backward reactions relate?
In reversible reactions, how do energy changes in forward and backward reactions relate?
They are opposing
If the forward reaction is exothermic, what is the backward reaction?
If the forward reaction is exothermic, what is the backward reaction?
Endothermic
If the forward reaction is endothermic, what is the backward reaction?
If the forward reaction is endothermic, what is the backward reaction?
Exothermic
What does an exothermic reaction do with energy?
What does an exothermic reaction do with energy?
Transfers energy to surroundings
What does an endothermic reaction do with energy?
What does an endothermic reaction do with energy?
Absorbs energy from surroundings
In exothermic reactions, which process releases more energy?
In exothermic reactions, which process releases more energy?
Bond formation in products
In endothermic reactions, which process requires more energy?
In endothermic reactions, which process requires more energy?
Bond breaking in reactants
What type of reaction is (forward)?
What type of reaction is (forward)?
Exothermic
What type of reaction is the decomposition of HI into and (backward)?
What type of reaction is the decomposition of HI into and (backward)?
Endothermic
The energy change of the reverse reaction is always what compared to the forward reaction?
The energy change of the reverse reaction is always what compared to the forward reaction?
The opposite