GCSE Chemistry – Activation energy
Learning Objectives
-I can describe how a catalyst lowers activation energy
-I can draw an energy profile diagram for a catalysed and an uncatalysed reaction
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- Current
- Review
- Answered
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1. Question
What is the definition of activation energy?
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2. Question
What is the definition of a catalyst?
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3. Question
What does a catalyst do to the activation energy of a reaction?
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4. Question
Which has a higher activation energy, an uncatalysed reaction or a catalysed reaction?
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5. Question
Which has a lower activation energy, an uncatalysed reaction or a catalysed reaction?
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6. Question
What is the definition of a energy profile diagram?
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7. Question
What lies on the x axis of an energy profile diagram?
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8. Question
What lies on the y axis of an energy profile diagram?
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9. Question
What type of line should be drawn to show the activation energy on an energy profile diagram?
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10. Question
When drawing the activation energy on an energy profile diagram, where should the line start from?
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11. Question
When drawing the activation energy on an energy profile diagram, where should the line end?
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12. Question
What should be drawn on an energy profile diagram to show activation energy?
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13. Question
When drawing an arrow on an energy profile diagram to show the activation energy, which way should the arrow be drawn?
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14. Question
For an uncatalysed reaction, which has more energy the reactants or products?
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15. Question
For an uncatalysed reaction, which has less energy the reactants or products?
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16. Question
Which of the following best describes the place for the activation energy on an energy profile diagram for an uncatalysed reaction?
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17. Question
For an uncatalysed reaction, explain where the reactants will fall on an energy profile diagram compared to the products.
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18. Question
For an uncatalysed reaction, explain where the products will fall on an energy profile diagram compared to the reactants.
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19. Question
For a catalysed reaction, which has more energy the reactants or products?
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20. Question
For a catalysed reaction, which has less energy the reactants or products?
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21. Question
Which of the following best describes the place for the activation energy on an energy profile diagram for a catalysed reaction?
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22. Question
For a catalysed reaction, explain where the reactants will fall on an energy profile diagram compared to the products.
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23. Question
For a catalysed reaction, explain where the products will fall on an energy profile diagram compared to the reactants.
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24. Question
When drawing an energy profile diagram, which reaction will have a higher curved line drawn to signify its activation energy an uncatalysed reaction or a catalysed reaction?
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25. Question
When drawing an energy profile diagram, which reaction will have a lower curved line drawn to signify its activation energy an uncatalysed reaction or a catalysed reaction?