Hatta number

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The Hatta number was developed by Shirôji Hatta, who taught at Tohoku University.^[1] It is a dimensionless parameter that compares the rate of absorption of a solute, A, in a reactive system (N_A0) to the rate of absorption of the same solute A in the case of physical absorption (N_A0^phys).^[2]

$Ha = \frac{N_{A0}}{N_{A0}^{phys}}$

[edit] References

^ S. Hatta, Technological Reports of Tôhoku University, 10, 613-622 (1932).
^ R.B. Bird, W.E. Stewart, E.N. Lightfoot, Transport Phenomena, 2nd ed. John Wiley & Sons, 2002.