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  • for a reaction:  what is the rate law?<div class='qna-option

for a reaction: 
A+B\rightarrow C
what is the rate law?

Option: 1

r=K[A][B]


Option: 2

r=K[A][B][C]


Option: 3

r=K[A]^{n}[B]^{m}


Option: 4

r=K[B][C]


Answers (1)

best_answer

The Rate Law is the expression in which reaction rate is given in terms of the molar concentration of reactants with each term raised to some power, which may/may not be equal to the stoichiometric of the reacting species in a balanced chemical equation.

Formula: aA+bB\rightarrow cC+dD

              Rate=\frac{dR}{dT}

              =\alpha [A]^{x}.[B]^{y}

             =K[A]^{x}.[B]^{y}

K= rate constant 

So, from the above theory, the correct rate law will be

r = K[A]^n [B]^m

Therefore, option(3) is correct?????.

Posted by

seema garhwal

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