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  • The rate constant of the reaction  A → 2B  is   mole per second. If the concentrati

The rate constant of the reaction  A → 2B  is 10^{-3}  mole per second. If the concentration of A is 2 M, then concentration of B after 10 minutes is

Option: 1

1.2 M 


Option: 2

0.6 M 


Option: 3

2 M 


Option: 4

None of the above


Answers (1)

best_answer

Order of reaction is zero as unit of rate constant is mole per second.

For a zero order reaction, concentration of reactant

\mathrm{A= A _o-K t }
\mathrm{ \Rightarrow A=2 M-10^{-3} \times 10 \times 60 \mathrm{M} }
\mathrm{ \Rightarrow A=2 \mathrm{M}-0.6 \mathrm{M} }

Since, concentration of reactant is reduced by 0.6 M, the concentration of product is 1.2 M (= 2x 0.6M) after 10 minutes.

 

Posted by

Ajit Kumar Dubey

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