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  4. The units of rate constant for first order reaction are

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Q. The units of rate constant for first order reaction are

MHT CETMHT CET 2010Chemical Kinetics

Solution:

For nth order reaction,

the units of rate constant = $ (mol \, L^{-1})^{1-n} . s^{-1}. $

(where, n = order of reaction)

$ \therefore $ For first order reaction,

the units of rate constant= $ (mol \, L^{-1})^{1-1} . s^{-1} = s^{-1} $