Chemical kinetics

Question

A reaction container initially contains 225.0ml of a 0.200M AB solution, which reacts to from the gaseous products. The products are collected over water at 22.0c. Determine the amount of time required to obtain 215.0ml of the products at a pressure of 739.1mmHg. The vapor pressure of water at 22.0c is 19.8mmHg

Answer 1

I'm guessing we'd need to know more information, such as the order of this reaction, or some other kinetic or stoichiometry information. As stated, there appears to be no way to determine time or rate. From the information provided, we can calculate moles of product formed, but we'd need more info to calculate rate of reaction.