Question

is it collision of molecules is a necessity for chemical reaction ?

Answer 1

it is one of the factors affecting chemical reaction

Answer 2

oh ,thats mean without collision of molecules , it would never be a chemical reaction ?

Answer 3

of course without collision there is no chemical reaction takes place
and the rate of the reaction depends on how fast or slow collision takes place

Answer 4

oh ,i got it . btw , how about activation energy Ea? what is mean by the minimum energy that needed fo chemical reaction ? why the collision must equal n greater than the Ea?

Answer 5

well chemical reaction consists of levels if u defined the Ea
(it is the minimum energy required to start a chemical reaction )
after that we transfer to the 2nd level which is collision
& that level is higher so it needs an equal or higher energy to complete
the Reaction.

Answer 6

y axis is relative num of molecules n x axis is kinetic energy. can u explain more ?