Rate of Chlorine Loss

We ran an experiment testing the different combinations of the temperature of the surrounding atmosphere, presence of UV light, and surface area in order to determine which combination would provide the slowest rate of chlorine loss. We added 0.1 mL of chlorine to 2000 mL of water and tested the chlorine level every 20 minutes for 140 minute period.

Our data did not show which combination provided the slowest rate of change. it showed that chlorinated water in an atmosphere with a temperature of 55 degrees Celsius and subjected to UV light would provide the fastest rate of change, .0171 ppm/min. All other combinations resulted in a rat of .0143 ppm/min. Surface area appeared to have no effect on the rate at which the chlorine level decreased.

Research Done By:

Megan Cardinal

BethAnne Leach