Reaction Profiles (OCR GCSE Chemistry A (Gateway Science Suite)): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 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 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
In an exothermic reaction, how do the energy levels of reactants and products compare?
In an exothermic reaction, how do the energy levels of reactants and products compare?
Reactants higher than products
On an exothermic reaction profile, where are reactants drawn compared to products on the y-axis?
On an exothermic reaction profile, where are reactants drawn compared to products on the y-axis?
At a higher level
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
In an exothermic reaction, what does the height difference between reactants and products show?
In an exothermic reaction, what does the height difference between reactants and products show?
Energy released to surroundings
In an endothermic reaction, how do the energy levels of reactants and products compare?
In an endothermic reaction, how do the energy levels of reactants and products compare?
Products higher than reactants
On an endothermic reaction profile, where are reactants drawn compared to products on the y-axis?
On an endothermic reaction profile, where are reactants drawn compared to products on the y-axis?
At a lower level
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
In an endothermic reaction, what does the height difference between reactants and products show?
In an endothermic reaction, what does the height difference between reactants and products show?
Energy absorbed from surroundings