a. What is the value of $V_{SA}$, the molal flow rate (mol/s) of air supplied to the bottom of the tower,
at the process conditions listed below? What is the value of $y_b$, the mole fraction of $CO_2$ in the
gas supplied to the tower? What is the value of $V_b$, the molal flow rate (mol/s) of gas supplied to
the bottom of the tower?
Process Variable
temperature of gas at the bottom of the tower
ambient pressure
pressure drop across the packing
std volumetric flow rate of supplied air
std volumetric flow rate of supplied $CO_2$
Symbol
Measurement
$\Theta_{Gb}$
22.07 $^\circ$C
$P_{amb}$
30.10 inHg
$P_b - P_a$
0.42 $ftH_2O$
$V_{SA}$
39.87 SLPM
$V_{SC}$
3.466 SLPM
Answer: $V_{SA} = 0.0272$ mol/s, $y_b = 0.0803$, $V_b = 0.0295$ mol/s
