Investigating Some Factors Which Affect the Rate of Reaction Between Hydrochloric pane of glass and Sodium Thiosulphate
Background Information
Reactions can be completed at contrastive rates. The rate of reaction is measured by observing how quick reactants be used up or how quickly products are forming. This can be calculated in three shipway:
oPrecipitation - When the products of the reaction is a precipitate, which will cloud the solution. Observing a grade through the solution and timing how long it takes for this marker to disappear will determine the rate of reaction.
oChange in hoi polloi - Reactions which produce gas can be carried out on a precise set of scales and the decrease in mass can easily be measured.
oVolume of Gas Given stumble - Using a gas syringe, the volume of gas devoted off during an experiment can be measured.
In order for particles to react, they must(prenominal) be colliding with each other with a sufficient impact. This is cognise as the Collision Theory. To increase the rate of reaction, the number of collisions betwixt the particles must increase. This can be done in a number of ways:
·Temperature - Higher temperatures increase the rate of reaction, as there are more high- efficiency molecules. Reactions can completely take place if the particles collide with abounding energy.
At a higher temperature, there will be more particles colliding with enough energy to make the reaction happen. This energy is known as the activation energy and is needed to break initial bonds. rhytidectomy the temperature by 10ºC causes the number of high energy molecules to double. This means the rate of reaction also doubles and the clock time taken for the reaction to be completed is halved.
·Agitation - This is unremarkably known as stirring. When a reaction mixture is undergoes busy movement, the particles in...
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