The Energy Change of Reactions (AQA GCSE Chemistry): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
According to the principle of conservation of energy, what happens to energy?
According to the principle of conservation of energy, what happens to energy?
It can only be transferred from one form to another
What does the 'system' refer to in a chemical reaction?
What does the 'system' refer to in a chemical reaction?
The chemical reaction being studied
What are the 'surroundings' in a chemical reaction?
What are the 'surroundings' in a chemical reaction?
Everything outside the reaction
In exothermic reactions, how does the energy in reactants compare to products?
In exothermic reactions, how does the energy in reactants compare to products?
Energy in reactants > products
What happens to the temperature of surroundings in an exothermic reaction?
What happens to the temperature of surroundings in an exothermic reaction?
Temperature increases
Which of these is an example of an exothermic reaction?
Which of these is an example of an exothermic reaction?
Combustion
In endothermic reactions, how does the energy in products compare to reactants?
In endothermic reactions, how does the energy in products compare to reactants?
Energy in products > reactants
What happens to the temperature of surroundings in an endothermic reaction?
What happens to the temperature of surroundings in an endothermic reaction?
Temperature decreases
Which of these is an example of an endothermic reaction?
Which of these is an example of an endothermic reaction?
Photosynthesis
What happens to energy when a chemical bond is broken?
What happens to energy when a chemical bond is broken?
Energy is absorbed
What happens to energy when a chemical bond is made?
What happens to energy when a chemical bond is made?
Energy is released
If the energy change for a reaction is negative, what type of reaction is it?
If the energy change for a reaction is negative, what type of reaction is it?
Exothermic