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  • Which among the following factors affect rate of a chemical reaction?  Option: 1 Physical state of reactant.<div class='

Which among the following factors affect rate of a chemical reaction?

 

Option: 1

Physical state of reactant.


Option: 2

Particle size (surface area) of the reactant.


Option: 3

Temperature.


Option: 4

All of the above.


Answers (1)

best_answer

Rate of a chemical reaction is dependent on all of the above factors. 

Physical state: Solid < Liquid < gas

Smaller is the size if particle, more will be the rate of reaction because effective surface area increases

For both endo- and exo-thermic reactions, rate of reaction increased on increasing the temperature. On increasing the temperature by 10°C generally rate of reaction becomes 2 to 3 times.

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