What typically happens to vapors and gases with molecular weights greater than 29?

Vapors and gases with molecular weights greater than 29 typically sink in air due to their greater density compared to the surrounding atmosphere. As a result, these heavier vapors tend to accumulate near the ground or in low-lying areas, which can pose significant hazards in terms of exposure or even potential flammability, depending on the specific gas involved.

This characteristic behavior is crucial for handling hazardous materials, as it underscores the importance of monitoring and ventilating spaces where such vapors might collect. Understanding the density of gases helps Hazmat Technicians implement appropriate safety measures and response strategies, especially in confined spaces or during spills.