Time required for 50% decomposition of a liquid in an isothermal batch reactor following first order kinetics is 2 minutes. The time required for 75% decomposition will be about _______________ minutes?

Question

Accepted Answer

4. For first-order kinetics, the time for 75% decomposition is approximately $2.3 	imes$ the time for 50% decomposition (which is $	ext{t}_{1/2}$). Thus, $2 	imes 2.3 	imes 2 = 9.2$, making 4 minutes a reasonable estimate among choices.