Rate of reaction - All about factors!

The following was some activities carried out by my students doing "Catalyst factor on Rate of Reaction".

The presence of catalyst will lower the activation energy of a reaction, but at the same time, make sure you all remember that there is no increase in frequency of collision.

The increase of rate of reaction is caused by the lowering of activation energy in the reaction.
Therefore, there is an increase in frequency of effective collision in the reaction.

Check the video of decomposition of hydrogen peroxide solution as below:

Rate of Reaction

Rate of Reaction

Photos taken 28/1/2010

Class: 5 setia

Reaction of sodium thiosulphate and sulphuric acid :

Problem: How does the change of temperature of solution of sodium thiosulphate affect the rate of reaction?

Find it out!


More actions!!



Videos!

Rusting..... have you (Part II) ?

More pictures on day two...

Wow teacher I got the iron nail rusted!!!!

Rusting..... have you?

Objective: To investigate the effect of other metal on rusting

Some photoes for you all to see the blue and the pink colouration...

Result after a day.............

Some photoes in acition...

Hi, everyone!  Today, the Guru Chemistry brings you more tales from the lab... check it out!

The topic for today is about...........Redox Reaction

Learning redox through experimenting....

1.  Investigating the oxidation and reduction of iron (II) ions and iron (III) ions

Knowing the colour well before started.

                                 

                      I get the brown solution from the green one!

2.  Investigating displacement reaction of metal from its solution.

    Please check on  me!

3.  Investigating transfer of electrons at a distance in a reaction.