Question

The rate of the reaction

$CCl_{3}CHO + NO \rightarrow CHCl_{3} + NO + CO$ is given by Rate

$= K\lbrack CCl_{3}CHO\rbrack\lbrack NO\rbrack$. If concentration is expressed in

moles/litre, the units of K are.

• A. $litre^{2}mole^{- 2}\sec^{- 1}{}$
• B. $molelitre^{- 1}\sec^{- 1}{}$
• C. $litremole^{- 1}\sec^{- 1}{}$
• D. $\sec^{- 1}{}$

Answer 1

Answer: (C)

$litremole^{- 1}\sec^{- 1}{}$

Answer 2

It is a second order reaction and the unit of k for second order reaction is litre $mol^{- 1}sec^{- 1}$.