What is a potential consequence of incomplete purging of a vessel?

Incomplete purging of a vessel can lead to the formation of explosive mixtures. When a vessel is not fully purged, residual gases or liquids can remain inside, creating an environment where flammable vapors can mix with air. This mixture can reach the lower flammable limit (LFL), making it highly susceptible to ignition. The presence of combustible materials in combination with oxygen poses a significant explosion hazard, which is particularly concerning in industrial processes where there are high-temperature operations or potential sources of sparks.

Options that suggest improved efficiency, better thermal stability, or increased product yield do not accurately reflect the risks associated with incomplete purging. Instead, these statements may imply beneficial outcomes that are contrary to the reality of inadequate purging. The correct answer highlights a critical aspect of safety management in processes that involve the handling of hazardous materials.