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ANIL KUSHWAHA Grade: Upto college level
        

WHAT IS RATE OF REX

6 years ago

Answers : (1)

Askiitians_Expert Yagyadutt
askIITians Faculty
74 Points
										

hII ANIL


 


The reaction rate or rate of reaction for a REACTANT or PRODUCT in a particular REACTION is intuitively defined as how fast or slow a reaction takes place. For example, the OXIDATION of iron under the atmosphere is a slow reaction which can take many years, but the combustion of butane in a fire is a reaction that takes place in fractions of a second.


 


So mathematically rate of reaction is expressed as...


 


Consider a typical chemical reaction:


aA + bB → pP + qQ

The lowercase letters (a, b, p, and q) represent stichiometric co-efficient, while the capital letters represent the reactants (A and B) and the products (P and Q). 


The reaction rate r for a chemical reaction occurring in a closed system under constant-volume conditions, without a build-up of reaction intermediate, is defined as:


r = - \frac{1}{a} \frac{d[A]}{dt} = -  \frac{1}{b} \frac{d[B]}{dt} = \frac{1}{p} \frac{d[P]}{dt} = \frac{1}{q}  \frac{d[Q]}{dt},

I hope you get it

regards
Yagya
askiitians_expert
6 years ago
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