GCSE Chemistry – Exothermic and endothermic reactions

Last updated: 13/04/2020

Learning Objectives

-I can describe the energy changes in exothermic and endothermic reactions
-I can give uses for exothermic and endothermic reactions
-I can draw the reaction profiles for exothermic and endothermic reactions

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  1. Current
  2. Review
  3. Answered
  1. What are the units for energy change?

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  2. Which of the following statements is correct when describing energy?

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  3. What is the definition of an exothermic reaction?

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  4. Describe the energy transfer taking place for an exothermic reaction.

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  5. Describe the temperature change of an exothermic reaction.

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  6. Describe the energy of the reactants compared to the products for an exothermic reaction.

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  7. Describe the energy of the products compared to the reactants for an exothermic reaction.

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  8. What is the definition of an endothermic reaction?

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  9. Describe the energy transfer taking place for an endothermic reaction.

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  10. Describe the temperature change of an endothermic reaction.

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  11. Describe the energy of the reactants compared to the products for an endothermic reaction.

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  12. Describe the energy of the products compared to the reactants for an endothermic reaction.

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  13. Which of the following are an example of an exothermic reaction?

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  14. Which of the following are an example of an exothermic reaction?

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  15. Which of the following are an example of an exothermic reaction?

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  16. Which of the following are an example of an endothermic reaction?

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  17. Which of the following are an example of an endothermic reaction?

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  18. Which type of energy change takes place within chemical hand/body warmers?

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  19. Which type of energy change takes place within chemical cold packs?

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  20. What will lie on the x-axis of a reaction profile graph?

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  21. What will lie on the y-axis of a reaction profile graph?

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  22. For an exothermic reaction, describe the position of the reactants on a reaction profile graph.

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  23. For an exothermic reaction, describe the position of the products on a reaction profile graph.

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  24. For an endothermic reaction, describe the position of the reactants on a reaction profile graph.

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  25. For an endothermic reaction, describe the position of the products on a reaction profile graph.

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