How much chlorine can be obtained from a 150-pound cylinder at 70 degrees Fahrenheit?

The correct answer reflects the typical amount of gaseous chlorine that can be safely drawn from a fully pressurized 150-pound cylinder at a temperature of 70 degrees Fahrenheit. At this temperature, the chlorine gas's density and the cylinder's design allow for an optimal or expected yield of around 42 pounds per day.

The calculation for chlorine release is based on established values that account for the pressure and temperature conditions conducive to chlorine's gaseous state from a cylinder. Therefore, in this scenario, 42 pounds per day is commonly accepted as a standard maximum output under those conditions. Understanding the principles governing gas volumes, pressures, and temperature helps confirm why this figure represents a practical limit for safe utilization of chlorine from such a cylinder in water distribution systems.