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  • Need explanation for: Which one of the following statements for the order of a reaction is incorrect?

Which one of the following statements for the order of a reaction is incorrect?

  • Option 1)

    Order can be determined only experimentally

  • Option 2)

    Order is not influenced by stoichiometric coefficient of the reactants

  • Option 3)

    Order of reaction is sum of power to the concentration terms of reactants to express the rate of reaction

  • Option 4)

    Order of reaction is always whole number.

 

Answers (2)

best_answer

As learnt in

Order of a Reaction -

The order of a reaction is determined as the sum of the powers of the concentration terms that appear in the experimental rate equation. It is an experimental quantity.

- wherein

Formula: aA+bB\rightarrow cC+dD

               r=K[A]^{a}[B]^{b}

              order=(a+b)

  \therefore     Order has relation with stoichiometry & is determined experimentally. It can be zero/fraction/negative/positive

 

 

The order of a reaction has a relation with stoichiometry and is determined experimentally. It can be zero/ fraction/ negative/ positive.


Option 1)

Order can be determined only experimentally

This option is incorrect.

Option 2)

Order is not influenced by stoichiometric coefficient of the reactants

This option is incorrect.

Option 3)

Order of reaction is sum of power to the concentration terms of reactants to express the rate of reaction

This option is incorrect.

Option 4)

Order of reaction is always whole number.

This option is correct.

Posted by

divya.saini

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Order of a reaction can be an integer as its experimentally determined.

so the answer is 4th option

Posted by

BHARATH CHARAN

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