Reaction Profiles (AQA GCSE Chemistry): Quizzes
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12 questions from this quiz
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Practise the questions
12 questions from this quiz
What are reaction profiles also known as?
What are reaction profiles also known as?
Energy diagrams
What does the Y-axis represent on a reaction profile?
What does the Y-axis represent on a reaction profile?
Energy of the system
What does the X-axis represent on a reaction profile?
What does the X-axis represent on a reaction profile?
Progress of the reaction
What is activation energy?
What is activation energy?
Energy hump that must be overcome
What does the 'hump' in a reaction profile represent?
What does the 'hump' in a reaction profile represent?
Activation energy
In exothermic reactions, how are reactants positioned relative to products on the Y-axis?
In exothermic reactions, how are reactants positioned relative to products on the Y-axis?
Higher than products
What is the overall energy change in an exothermic reaction?
What is the overall energy change in an exothermic reaction?
Negative
In exothermic reactions, what happens to energy during the reaction?
In exothermic reactions, what happens to energy during the reaction?
Released to the surroundings
In endothermic reactions, how are reactants positioned relative to products on the Y-axis?
In endothermic reactions, how are reactants positioned relative to products on the Y-axis?
Lower than products
What is the overall energy change in an endothermic reaction?
What is the overall energy change in an endothermic reaction?
Positive
In endothermic reactions, what happens to energy during the reaction?
In endothermic reactions, what happens to energy during the reaction?
Absorbed from the surroundings
What does the height difference between reactants and products represent in exothermic reactions?
What does the height difference between reactants and products represent in exothermic reactions?
Energy released