GCSE Chemistry – Energy changes in a reaction
Learning Objectives
-I can determine the energy change in a reaction
-I can recall that energy is needed to break bonds
-I can recall that energy is released when bonds are made
-I can calculate the energy change in a reaction
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Question 1 of 25
1. Question
What is the definition of bond energy?
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Question 2 of 25
2. Question
What are the units for bond energy?
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Question 3 of 25
3. Question
What are bond energies used to calculate?
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Question 4 of 25
4. Question
What is the definition of an exothermic reaction?
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Question 5 of 25
5. Question
What is the definition of an endothermic reaction?
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Question 6 of 25
6. Question
What part of a reaction will energy be taken in?
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Question 7 of 25
7. Question
What part of a reaction will energy be released?
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Question 8 of 25
8. Question
What is needed for bonds to be broken?
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Question 9 of 25
9. Question
When energy is released during bond making, where is it released to?
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Question 10 of 25
10. Question
What type of process is bond breaking?
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Question 11 of 25
11. Question
What type of process is bond making?
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Question 12 of 25
12. Question
What part of a reaction will bond breaking be taking place?
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Question 13 of 25
13. Question
What part of a reaction will bond making be taking place?
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Question 14 of 25
14. Question
Describe the energy change taking place when bonds are broken.
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Question 15 of 25
15. Question
Describe the energy change taking place when bonds are made.
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Question 16 of 25
16. Question
What part of a reaction will tell you if it is an exothermic or endothermic reaction?
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Question 17 of 25
17. Question
What is the equation for working out the overall energy change of a reaction?
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Question 18 of 25
18. Question
When calculating the overall energy of a reaction some information will be given to you in a table, what is this information?
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Question 19 of 25
19. Question
Which information should be worked out in order to calculate the overall energy change of a reaction?
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Question 20 of 25
20. Question
Which information should be worked out in order to calculate the overall energy change of a reaction?
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Question 21 of 25
21. Question
Use the following bond energies to calculate the overall energy change for the combustion of methane.
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Question 22 of 25
22. Question
Use the following bond energies to calculate the overall energy change for the combustion of ethene.
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Question 23 of 25
23. Question
Use the following bond energies to calculate the overall energy change for the combustion of propane.
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Question 24 of 25
24. Question
Use the following bond energies to calculate the overall energy change for the combustion of propene.
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Question 25 of 25
25. Question
Use the following bond energies to calculate the overall energy change for the combustion of butane.
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