Question

The accompanying figure depicts the change in concentration of species X and Y for the reaction $X\to Y$ as a function of time. The point of intersection of the two curves represents:

• A. $t_{1/2}$
• B. $t_{3/4}$
• C. $t_{2/3}$
• D. Data is insufficient to predict

Answer 1

Answer: (A)

$t_{1/2}$

The point of intersection of the two curves represents $t_{1/2}$.The intersection point indicates that half of the reactant X is converted into Y.
The time in which the concentration of a reactant is reduced to half of its original value is called half life period of the reaction.