Question

For the reaction $A\to B$, identify the correct sequence of steps for the calculation of average rate of reaction.
$\left(a\right)$ Plotting a graph of concentration of $A$ at various time intervals
$\left(b\right)$ Identification of $C_2$ and $C_1$ at different time intervals $t_2$ and $t_1$ respectively by reading the graph
$\left(c\right)$ Calculation of $\frac{C_2-C_1}{t_2-t_1}$
$\left(d\right)$ Finding out the experimental values of concentrations of $A$ at regular intervals

• A. $dbca$
• B. $dabc$
• C. $cbad$
• D. $abcd$

Answer 1

Answer: (B)

$dabc$

Reaction rates are usually expressed as the concentration of reactant consumed or the concentration of product formed per unit time.

To measure reaction rates, initiate the reaction, measure the concentration of the reactant or product at different times as the reaction progresses, perhaps plot the concentration as a function of time on a graph, and then calculate the change in the concentration per unit time.

So, the correct order will be $dabc.$