1. It is proportional to the natural log of a normalized residence time . 2. The residence time of drops in the measurement volume affects the results. 3. Cellulose and starches are easily degraded, resulting in relatively short residence times . 4. The logarithmic residence time is a dimensionless variation of the residence time . 5. The logarithmic residence time is a dimensionless variation of the residence time. 6. Dryer residence time should not be shorter than about four hours. 7. The residence time of 36 Cl in the atmosphere is about 2 years. 8. This will lower the load capacity of evaporator and reduce the residence time . 9. Higher combustion temperatures and residence times destroy unwanted constituents such as un-burnt hydrocarbons. 10. For a homogeneous CSTR, the residence time distribution is the most probable distribution.