Initial Rate method

You might need: Calculator

Rate data was collected from

3

separate experiments conducted under similar conditions, for the reaction,

\begin{array}{r} L (g) + 3 F (g) \to W (g) \end{array}

The rate data so obtained in the experiments was,

$Exp. No.$ ‍	$[L]_{0}$ ‍	$[F]_{0}$ ‍	$Initial Rate$ ‍
$1.$ ‍	$0.2$ ‍	$0.5$ ‍	$1.4 \times 10^{- 3}$ ‍
$2.$ ‍	$0.4$ ‍	$0.5$ ‍	$5.6 \times 10^{- 3}$ ‍
$3.$ ‍	$0.4$ ‍	$0.25$ ‍	$2.8 \times 10^{- 3}$ ‍

The initial concentrations of reactants,

[L]_{0}

and

[F]_{0}

are taken in

{mol L}^{- 1}

and the value of initial rate (

R

) is reported in

{mol L}^{- 1} s^{- 1}

Which of the following depicts the unit of rate constant ( $k$ ‍) for this reaction?

Class 12 Chemistry (India)