Chemistry - Chemical Kinetics Question with Solution | TestHub

For a zero order reaction, the rate of reaction is independent of the concentration of the reactant.

The integrated rate equation for a zero order reaction is given by:

$[A{]}_t=-kt+[A{]}_0$

where $[A{]}_t$ is the concentration of the reactant at time $t$, $[A{]}_0$ is the initial concentration, and $k$ is the rate constant.

Comparing this equation with the equation of a straight line $y=mx+c$, we get:

$y=[A{]}_t$

$x=t$

$m=-k$

$c=[A{]}_0$

Thus, plotting the concentration of reactant $[A{]}_t$ versus time $t$ yields a straight line with a slope of $-k$.

Answer: $-k$