Question

what is the basis of reactivity? what is the, most probable,main reason why matter holds such ability, to change into another substance(s).it is the assumtion from Kinetics.For your substances to react they must collide cuz that is the way for them to have an interaction. (Three words only)

Answer 1

ANSWER

React Substance must collide and they have an interaction because of Formation of Stable Substance (Compound).

Basis of Reactivity:- ​​​​​​According to Kinetics assumptions, When a reaction occurs between two reactant species, it procced faster at higher concentration of the reactant. This fact leads to general analysis .

Reaction Rate =Number of collision between reactant molecule per unit time + Fraction of collision with sufficient energy to pass the transition state + an orientation or probability factor.

​​​​​​According to Collision Theory:- The reaction between two species takes place when the reactant molecule come close and collide with each other.

R + R ------------$>$ P

T increasing ---$>$K.E increasing---$>$V increasing---$>$Random Motion increases -----$>$Collision increases ----$>$Rate increases.

Arhenous experiment found that, if 10°C temperature gives in a close container then the rate of reaction are double. If Collision temp. 300k then rate is x and collision temp. is 310k then rate will be 2x.

Effective Collision Theory :- Only those collision are effective in producing the product which satisfy the criteria of   

1) Activation energy ( Energy Barrier)

2) Proper Orientation of a molecule.

eg:- H2 + I2 --------$>$ 2HI

- Het I 2 HI @@_+ 200 Not a proper Orientation 2 9 Proper Orientation Collision

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