Reaction Profiles (OCR GCSE Chemistry A, Combined (Gateway Science Suite)): Quizzes
📚Quizzes
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Practise the questions
10 questions from this quiz
What is another name for reaction profiles?
What is another name for reaction profiles?
Energy diagrams
What does the y-axis represent on a reaction profile?
What does the y-axis represent on a reaction profile?
Energy level of the system
What does the x-axis represent on a reaction profile?
What does the x-axis represent on a reaction profile?
Reaction progress
What is activation energy?
What is activation energy?
Energy hump that must be overcome
In exothermic reactions, how do reactant and product energy levels compare?
In exothermic reactions, how do reactant and product energy levels compare?
Reactants higher than products
What is the sign of the overall energy change in an exothermic reaction?
What is the sign of the overall energy change in an exothermic reaction?
Negative
What does the height difference between reactants and products show in an exothermic reaction?
What does the height difference between reactants and products show in an exothermic reaction?
Energy released to surroundings
In endothermic reactions, how do reactant and product energy levels compare?
In endothermic reactions, how do reactant and product energy levels compare?
Reactants lower than products
What is the sign of the overall energy change in an endothermic reaction?
What is the sign of the overall energy change in an endothermic reaction?
Positive
What does the height difference show in an endothermic reaction?
What does the height difference show in an endothermic reaction?
Energy absorbed from surroundings