In a continuous counter current packed absorber operating on very dilute concentra- tions, the volumetric gas mass transfer coefficient is proportional to Go.8 where G is the gas flow rate in moles per unit time per unit empty area. If G is doubled what will be the ratio of the height of gas transfer unit at the increased gas flow rate to the one at the original gas flow rate. (Assume the flow rates are below the loading point)

Introduction to Chemical Engineering Thermodynamics
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Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
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23. In a continuous counter current packed absorber operating on very dilute concentra-
tions, the volumetric gas mass transfer coefficient is proportional to GO.8 where G is
the gas flow rate in moles per unit time per unit empty area. If G is doubled what
will be the ratio of the height of gas transfer unit at the increased gas flow rate to the
one at the original gas flow rate. (Assume the flow rates are below the loading point)
(a) 20.8
(b) 20.2
(c) 2-0.8
(d) 2-0.2
Transcribed Image Text:23. In a continuous counter current packed absorber operating on very dilute concentra- tions, the volumetric gas mass transfer coefficient is proportional to GO.8 where G is the gas flow rate in moles per unit time per unit empty area. If G is doubled what will be the ratio of the height of gas transfer unit at the increased gas flow rate to the one at the original gas flow rate. (Assume the flow rates are below the loading point) (a) 20.8 (b) 20.2 (c) 2-0.8 (d) 2-0.2
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