At a certain temperature the second-order reaction NOCl(g)$\rarr$ NO(g)+ 1/2Cl₂(g)is 50% complete after 6.23 hours when the initial concentration of NOCl is 4.78 mol/L. How long will it take for the reaction to be 75% complete?

Question

Quizplus · Accepted Answer

For a second-order reaction, the time taken for a certain percentage completion is inversely proportional to the initial concentration. Since the reaction is 50% complete in 6.23 hours, it will take three times this duration (18.7 hours) to reach 75% completion.

At a Certain Temperature the Second-Order Reaction NOCl(g) →\rarr→ NO(g)+ 1/2Cl2(g)is 50% Complete After 6

At a Certain Temperature the Second-Order Reaction NOCl(g) $\rarr$ NO(g)+ 1/2Cl₂(g)is 50% Complete After 6