How much does gaseous chlorine expand in volume compared to liquid chlorine?

• A. 230 times
• B. 460 times
• C. 920 times
• D. 340 times

Answer: (B)

When considering the expansion of gaseous chlorine compared to liquid chlorine, it is established that gaseous chlorine expands significantly due to the differences in density and physical states. Specifically, when liquid chlorine transitions to a gas, it expands about 460 times its original volume. This large expansion factor is due to the densely packed molecules in the liquid state transitioning to a much less dense gaseous state, where the molecules are further apart and occupy more space.

Understanding the behavior of chemicals in different states is crucial for wastewater operators, particularly in processes involving disinfection and the safe handling of chemicals. The value of 460 times reflects extensive practical knowledge that is critical in maintaining safety and efficiency in wastewater treatment operations.