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Rates of Reaction Investigation.
The first 200 words of this essay...
Rates of Reaction Investigation
In this investigation I am going to investigate how fast the chemicals Hydrochloric Acid and Sodium Thiosulphate react. The four main variables that affect rate are:
o Temperature - if the reactants are heated/cooled they have more/less energy. If they have more energy there is greater chances of successful collisions meaning the reaction occurs faster.
o Concentration - if the solution is more concentrated there are more reactants there is a greater chance of successful collisions.
o Surface Area - if one reactant has more surface area there is greater chance of a successful collision as there is more area for the reaction to occur on.
o Catalysts - a catalyst is a chemical that speeds up a reaction without changing itself during the reaction. An example of this is an enzyme.
In this investigation however I am only going to investigate how concentration affects rate of reaction as the other methods of increasing the rate of reaction are not easily controlled and I do not know of a catalyst that will speed up the reaction.
In this preliminary work I am going
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