DOC BROWN'S Science-CHEMISTRY HOMEPAGE KS3 SCIENCE QUIZZES and WORKSHEETS (~US grades 6-8)
GCSE SCIENCE help links GCSE ADDITIONAL SCIENCE help links
KS3 BIOLOGY Quizzes KS3 CHEMISTRY Quizzes & Worksheets KS3 PHYSICS Quizzes
KS4 Science GCSE/IGCSE CHEMISTRY NOTES (~US grades 8-10) KS4 Science GCSE/IGCSE CHEMISTRY QUIZZES and WORKSHEETS (~US grades 8-10) ADVANCED LEVEL CHEMISTRY QUIZZES and WORKSHEETS (~US grades 11-12)
Custom Search

(c) doc bDoc Brown's Chemistry KS4 science GCSE/IGCSE Revision Notes

Factors affecting the Speed-Rates of Chemical Reactions

These pages describe the factors controlling the speeds of chemical reactions and the collision theory behind it discussed. The factors affecting the speed of reaction are also presented using particle models to give a theoretical basis to the rules on the effects of concentration, pressure, temperature, solid reactant particle size (surface area), stirring, catalysts and light. Methods of how to collect data are also described and graphical treatment of the observations and how to draw conclusions. How do we graphically interpret tables of results and what graphs are useful and why. How to we calculate the speed of a reaction?  These pages should also prove useful for coursework projects on rates/speeds of reactions e.g. help with ideas, apparatus, experimental methods, product collection, reaction equations and calculations etc. These revision notes are suitable for GCSE IGCSE O Level KS4 science chemistry students studying the factors that control the rate or speed of a chemical reaction. The descriptions of experiments to do with ...and theoretical explanations should help with homework, coursework assignments, 'labs' on rates of reaction experiments - anything to with the speed of chemical reactions and their controlling factors.

RATES of REACTION INDEX

1. What do we mean by the rate/speed of reaction?

How can we measure the speed or rate of a chemical reaction?

Experimental methods are described in this introduction & subsequent sections

2. Collision theory of chemical reactions and activation energy

3. Factors affecting the speed/rate of a chemical reaction:

3a Effect of changing concentration

3b Effect of changing pressure

3c Effect of changing particle size/surface area & stirring of a solid reactant

3d Effect of changing temperature

3e Effect of using a catalyst

3f Light initiated reactions

4. More examples of graphs and their interpretation


See also Advanced Level Chemistry Theory pages on "CHEMICAL KINETICS"

GCSE/IGCSE MULTIPLE CHOICE QUIZ on RATES of reaction

 


keywords-phrases: 1. What do mean by rate of reaction and its measurement? * 2. Collision theory of reaction * 3. Factors: 3a concentration, 3b pressure, 3c stirring, 3d particle size/surface area, 3e temperature, 3f catalyst, 3g light * 4. Examples of graphs, hydrochloric/sulphuric acid-metal magnesium or carbonate reaction * hydrochloric acid-sodium thiosulphate reaction * Activation energy * Catalysts * Concentration effect * help with coursework projects Graphs-gas collection * Graphs-examples * hydrogen peroxide decomposition * How reactions happen * Interpreting results * Light (catalyst) effect * Methods of measuring rate * Pressure effect * Rate of reaction * Reaction profiles *  Stirring effect * Surface area/size of solid particle reactant effect * Temperature effect   GCSE/IGCSE MULTIPLE CHOICE QUIZ on RATES of reaction MULTI-WORD worksheets revision questions GAP-FILL QUIZ MATCHING PAIRS QUIZ Q1 and Q2 CROSSWORD PUZZLE and ANSWERS! 10 JUMBLED SENTENCES to sort out!

Revision KS4 Science GCSE/IGCSE/O level Chemistry Information Study Notes for revising for AQA GCSE Science, Edexcel IGCSE Chemistry & OCR 21st Century Science, OCR Gateway Science  WJEC gcse science chemistry CCEA/CEA gcse science chemistry O Level Chemistry (revise courses equal to US grade 8, grade 9 grade 10) science chemistry courses revision guides

top

ALL Website content copyright Dr Phil Brown 2000-2014 All rights reserved on revision notes, images, puzzles, quizzes, worksheets, x-words etc. * Copying of website material is not permitted * chemhelp@tiscali.co.uk

Teach yourself chemistry online ALPHABETICAL SITE INDEX for chemistry

Alphabetical Index for Science Pages Content A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

SITE HELP SEARCH - ENTER SPECIFIC WORDS/FORMULA etc.