Most heterogeneous catalysts of importance are extremely finely divided solid materials. Why is the particle size important?

Question

anonymous · Answer

@Abhisar

abhisar · Answer

Hey there !

anonymous · Answer

:D purple looks good on you

abhisar · Answer

Hahaa..thanx !
Wait a min pleae..brb

anonymous · Answer

okay :)

abhisar · Answer

Yup !
Sorry..was busy wid sm mod stuf..:(

abhisar · Answer

okay..so why catalysts are needed to be finely divided...ryt ?

anonymous · Answer

aww .. busy ..busy.. busy :p

yes, 
my explanation for my own question is like this: when the surface area of the particles are very small, there will be more collision that will occur, causing the lowering of activation energy, which will result in an increase of reaction rate... but i don't think it's a good explanation.

anonymous · Answer

and im not sure if im right

abhisar · Answer

Chek this http://www.chemguide.co.uk/physical/basicrates/surfacearea.html

anonymous · Answer

ah okay , thanks! 
i'm on the right track 
how come i haven't seen this site when i was googling lol
thanks again :)

abhisar · Answer

yw