$6.$What does the F curve represent in RTD analysis?

A$)$ The fraction of fluid with a certain residence time

B$)$ The cumulative distribution function of residence times

C$)$ The frequency of residence times

D$)$ The mean residence time

What is the area under the C curve for an ideal reactor?

A$)0$

B$)1$

C$)0\mathrm{.}5$

D$)$ Infinity

The E curve in RTD analysis is used to represent:

A$)$ The distribution of residence times

B$)$ The cumulative distribution of residence times

C$)$ The frequency of residence times

D$)$ The mean residence time

Which of the following reactors typically has the most uniform RTD$?$

A$)$ Batch reactor

B$)$ CSTR

C$)$ PFR

D$)$ Stirred tank reactor