What is rate of reaction? Describe any two factors affecting rate of reaction.

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Solution

Rate of reaction :
Rate of chemical reaction is equal to change in concentration of reactant and product in unit time.
Rate of reaction $= \frac{C h a n g e i n c o n c e n t r a t i o n o f r e a c t a n t a n d p r o d u c t}{T i m e i n t e r v a l}$
Two factors :
(1) Concentration of reactants : Rate of reaction increases on increasing the concentration of reactants.
(2) Temperature of reactants : Rate of reaction increases on increasing the temperature. For $410^{o} c$ rise in temperature rate of reaction generally becomes double.
(3) Nature of reactants.
(4) Presence of catalysts.
(5) Surface area of reactants.
(6) Effect of radiation.

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