Which two types of flow process charts do chemical engineers use to trace the origin of toxic leaks?

Chemical engineers utilize qualitative and quantitative flow process charts when tracing the origin of toxic leaks, as these two types provide complementary insights into the processes involved.

Qualitative flow charts are essential for mapping out the sequence of steps in a process and understanding the relationships between different components. They help engineers identify potential areas of concern where leaks could occur by highlighting the paths materials take through the system.

Quantitative flow charts, on the other hand, offer numerical data related to flow rates, pressure, temperature, and other variables. This data is crucial for analyzing how different factors might contribute to leaks. By employing both qualitative and quantitative analyses, chemical engineers can thoroughly assess and trace leaks based on both process flow and the metrics associated with those flows, enabling a comprehensive understanding of the situation.

The other types mentioned, such as basic and advanced, graphical and numerical, or descriptive and analytical, do not specifically pertain to the dual aspects of tracing leaks in the context of process analysis, making them less suitable choices for this particular application.