Реферат: Rates Of Reaction Essay Research Paper Rates

particles with a greater amount of kinetic energy they will collide more often,

therefore there will be a greater amount of collisions per unit time. The

probability theory explains that there is only a number of particles within the

reaction with the amount of Ea to react, so if you increase the amount of

kinetic energy there will be more particles with that amount of Ea to react, so

this will also increase the reaction rate.

If you double the concentration of the acid the reaction rate would also double,

this is because there are more particles in the solution which would increase

the likelihood that they would hit the magnesium so the reaction rate would

increase. The graph gives us a good device to prove that if you double the

concentration the rate would also double. If you increase the number of

particles in the solution it is more likely that they will collide more often.

There should be more H2 given off if we compare it across the range of

temperatures because the reaction is going quicker and so more H2 is given off

in that amount of time.

There is more H2 given off if you compare it to the range of concentrations

that you are using, this shows that the reaction is at different stages and so

is therefore producing different amounts of H2.

Also our results were not accurate but this could be because of a number of

reasons.

There our many reasons why our results did not prove this point accurately. -

At high temperatures the acid around the magnesium starts to starts to dilute

quickly, so if you do not swirl the reaction the magnesium would be reacting

with the acid at a lower concentration which would alter the results. – Heating

the acid might allow H Cl to be given off, therefore also making the acid more

dilute which would also affect the results. – When the reaction takes place

bubbles of H2 are given off which might stay around the magnesium which

therefore reduces the surface area of the magnesium and so the acid can not

react properly with it so this affects the results.