Kinetics of Dissolution of Benzoic Acid

A Peltilizer is provided to make the solid cylinder size 1″ diameter and 2″ height of Benzoic Acid.
The setup consists of a Reactor in which solid cylinder of Benzoic Acid is placed and water is stirred by means of a variable speed mixer. 
Baffles are also provided. 
Electricity Supply: 1 Phase, 220 V AC, 0.5 kW.
To study the Kinetics of dissolution of Benzoic Acid.
Instruments, Laboratory Glassware, and Chemicals required for analysis.
The Reactor is made of Stainless Steel.
Water Supply and Drain.

Kinetics of Dissolution of Benzoic Acid