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Chemistry Question on Order of Reaction

The units of rate constant for first order reaction are

A

mol L−1s−1mol\,L^{-1}s^{-1}

B

s−1s^{-1}

C

L mol−1s−1L\,mol^{-1}s^{-1}

D

L2mol−2s−1L^2mol^{-2}s^{-1}

Answer

s−1s^{-1}

Explanation

Solution

For nth order reaction,

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