national 5 unit 1 reaction rates past paper questions and
TRANSCRIPT
![Page 1: National 5 Unit 1 Reaction Rates Past Paper Questions and](https://reader030.vdocuments.net/reader030/viewer/2022012014/61599d38c8c87071b44df14c/html5/thumbnails/1.jpg)
Rates of reaction
Past Paper Questions
National 5 Chemistry Specimen Paper
1. Graphs can be used to show the change in the rate of a reaction as the reaction proceeds.
The graph shows the volume of gas produced in an experiment over a period of time.
(a) State the time, in seconds, at which the reaction stopped. 1
(b) Calculate the average rate of reaction, in cm3 s–1, for the first 20 seconds. Show your working clearly.
2 (c) The graph shows that the rate of reaction decreases as the reaction proceeds. Suggest a reason for this.
1
![Page 2: National 5 Unit 1 Reaction Rates Past Paper Questions and](https://reader030.vdocuments.net/reader030/viewer/2022012014/61599d38c8c87071b44df14c/html5/thumbnails/2.jpg)
2011 Higher Section B Q.1
1
![Page 3: National 5 Unit 1 Reaction Rates Past Paper Questions and](https://reader030.vdocuments.net/reader030/viewer/2022012014/61599d38c8c87071b44df14c/html5/thumbnails/3.jpg)
2012 Higher Section B
1
![Page 4: National 5 Unit 1 Reaction Rates Past Paper Questions and](https://reader030.vdocuments.net/reader030/viewer/2022012014/61599d38c8c87071b44df14c/html5/thumbnails/4.jpg)
2011 Intermediate 2 Q.4
2
1
![Page 5: National 5 Unit 1 Reaction Rates Past Paper Questions and](https://reader030.vdocuments.net/reader030/viewer/2022012014/61599d38c8c87071b44df14c/html5/thumbnails/5.jpg)
2012 Intermediate 2
1
1
![Page 6: National 5 Unit 1 Reaction Rates Past Paper Questions and](https://reader030.vdocuments.net/reader030/viewer/2022012014/61599d38c8c87071b44df14c/html5/thumbnails/6.jpg)
2013 Intermediate 2 Q. 3
1
![Page 7: National 5 Unit 1 Reaction Rates Past Paper Questions and](https://reader030.vdocuments.net/reader030/viewer/2022012014/61599d38c8c87071b44df14c/html5/thumbnails/7.jpg)
SQA Standard Grade Chemistry Credit Paper 2012
![Page 8: National 5 Unit 1 Reaction Rates Past Paper Questions and](https://reader030.vdocuments.net/reader030/viewer/2022012014/61599d38c8c87071b44df14c/html5/thumbnails/8.jpg)
13. (b)
SQA Intermediate 2 2010
![Page 9: National 5 Unit 1 Reaction Rates Past Paper Questions and](https://reader030.vdocuments.net/reader030/viewer/2022012014/61599d38c8c87071b44df14c/html5/thumbnails/9.jpg)
![Page 10: National 5 Unit 1 Reaction Rates Past Paper Questions and](https://reader030.vdocuments.net/reader030/viewer/2022012014/61599d38c8c87071b44df14c/html5/thumbnails/10.jpg)
Past Paper Answers
2011 Higher Section B Q.1
![Page 11: National 5 Unit 1 Reaction Rates Past Paper Questions and](https://reader030.vdocuments.net/reader030/viewer/2022012014/61599d38c8c87071b44df14c/html5/thumbnails/11.jpg)
2011 Higher Section B Q.1
![Page 12: National 5 Unit 1 Reaction Rates Past Paper Questions and](https://reader030.vdocuments.net/reader030/viewer/2022012014/61599d38c8c87071b44df14c/html5/thumbnails/12.jpg)
2012 Higher Section B
![Page 13: National 5 Unit 1 Reaction Rates Past Paper Questions and](https://reader030.vdocuments.net/reader030/viewer/2022012014/61599d38c8c87071b44df14c/html5/thumbnails/13.jpg)
2011 Intermediate 2 Q.4
2012 Intermediate 2
![Page 14: National 5 Unit 1 Reaction Rates Past Paper Questions and](https://reader030.vdocuments.net/reader030/viewer/2022012014/61599d38c8c87071b44df14c/html5/thumbnails/14.jpg)
2013 Intermediate 2 Q. 3
![Page 15: National 5 Unit 1 Reaction Rates Past Paper Questions and](https://reader030.vdocuments.net/reader030/viewer/2022012014/61599d38c8c87071b44df14c/html5/thumbnails/15.jpg)
SQA Standard Grade Chemistry Credit Paper 2012
![Page 16: National 5 Unit 1 Reaction Rates Past Paper Questions and](https://reader030.vdocuments.net/reader030/viewer/2022012014/61599d38c8c87071b44df14c/html5/thumbnails/16.jpg)
13. (b) UNACCEPTABLE ANSWER
SQA Intermediate 2 2010
2. D