Revision notes topic questions past papers

REVISION NOTES      TOPIC QUESTIONS      PAST PAPERS

EXTENDED ONLY cont...

Diagram showing the increased kinetic energy that particles have  

at higher temperatures

Concentration

•  Increasing the concentration means there are more particles per cm3, so there is less 

space between the particles

•  Since there are more particles then it follows that there are more collisions, hence the rate 

of reaction increases

Diagram showing the decreases in space between particles  

at higher concentrations

7.1.2  RATE (SPEED) OF REACTION cont...

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2 ORGANISATION OF THE ORGANISM

YOUR NOTES

7 CHEMICAL REACTIONS

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CIE IGCSE Chemistry Revision Notes