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  3. Chemistry
  4. The rate constant of a reaction is 10.8× 10-5 mol dm-3 s-1 . The order of the reaction is

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Q. The rate constant of a reaction is $ 10.8\times {{10}^{-5}} $ $ mol\,\,d{{m}^{-3}}\,{{s}^{-1}} $ . The order of the reaction is

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Solution:

Units of rate constant for n order reaction $ ={{(mol/L)}^{1-n}}{{s}^{-1}}={{(mol\,d{{m}^{-3}})}^{1-n}}{{s}^{-1}} $ On comparing these units with the given units of rate constant, we get $ {{(mol\,d{{m}^{-3}})}^{1}}{{s}^{-1}}={{(mol\,\,d{{m}^{-3}})}^{1-n}}{{s}^{-1}} $ Thus, the order of the reaction is zero.