Energy Changes & Reversible Reactions (OCR GCSE Chemistry A (Gateway Science Suite)): Quizzes
📚Quizzes
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Practise the questions
10 questions from this quiz
What is the relationship between energy changes in forward and backward reactions in reversible reactions?
What is the relationship between energy changes in forward and backward reactions in reversible reactions?
They are opposing
If the forward reaction is exothermic, what type is the backward reaction?
If the forward reaction is exothermic, what type is the backward reaction?
Endothermic
If the forward reaction is endothermic, what type is the backward reaction?
If the forward reaction is endothermic, what type is the backward reaction?
Exothermic
What happens to energy in an exothermic reaction?
What happens to energy in an exothermic reaction?
Transfers energy to surroundings
Why does an exothermic reaction occur?
Why does an exothermic reaction occur?
More energy released than absorbed
What happens to energy in an endothermic reaction?
What happens to energy in an endothermic reaction?
Absorbs energy from surroundings
Why does an endothermic reaction occur?
Why does an endothermic reaction occur?
More energy needed to break bonds
What type is the forward reaction of and forming ?
What type is the forward reaction of and forming ?
Exothermic
What type is the decomposition of back into and ?
What type is the decomposition of back into and ?
Endothermic
What is always true about the energy change of the reverse reaction?
What is always true about the energy change of the reverse reaction?
Always opposite of forward reaction