Which term describes a substance that evaporates (vaporizes) readily?

Which term describes a substance that evaporates (vaporizes) readily?

• A. Volatile
• B. Vapor Drift (Volatility)
• C. Drift
• D. Absorption

Answer: (A)

Volatility is the property that describes a substance’s tendency to evaporate quickly. A volatile compound has relatively high vapor pressure at typical application temperatures and a lower boiling point, so its molecules escape into the air readily and the substance evaporates faster. This is why the term volatile is used for substances that vaporize readily. In turf work, high volatility means there’s a greater potential for vapor drift, especially under hot, windy conditions, which is a safety and environmental consideration. The other terms don’t describe the substance’s tendency to evaporate: drift relates to the movement of spray or vapor after application, and absorption refers to uptake into plant or soil.

Volatility is the property that describes a substance’s tendency to evaporate quickly. A volatile compound has relatively high vapor pressure at typical application temperatures and a lower boiling point, so its molecules escape into the air readily and the substance evaporates faster. This is why the term volatile is used for substances that vaporize readily.

In turf work, high volatility means there’s a greater potential for vapor drift, especially under hot, windy conditions, which is a safety and environmental consideration. The other terms don’t describe the substance’s tendency to evaporate: drift relates to the movement of spray or vapor after application, and absorption refers to uptake into plant or soil.