$5.$ Understanding the rate at which gas gets gobbled up by the liquid in a packed tower.

a$.$ Is it all about how much solvent you're pouring in$,$ or is there more to it$?$

b$.$ Could the way the gas and liquid bump into each other make a big difference?

c$.$ What's the deal with the temperature and pressurehelpers or hindrances?

$6.$ Graphical methods for figuring out how many stages you needwhy go visual?

a$.$ When would you absolutely want to use a graph instead of crunching numbers?

b$.$ How does drawing lines and curves help us get to the heart of the process?

c$.$ Ever think about what happens if those lines cross in the wrong place?

$7.$ The tale of two coefficients in mass transfer: Kga and Kla.

a$.$ Why care about the gas side of things with Kga?

b$.$ And what about Klahow does focusing on the liquid side change your approach?

c$.$ When these two clash, who usually wins, and why does it matter?

$8.$ When the gas film gets all the attentiondesigning for its whims.

a$.$ How does catering to the gas film's needs influence your column design?

b$.$ Can you adjust the process to make the gas film more cooperative?

c$.$ What if you just ignored it and focused on the liquid side?