Determine the diffusivity of H2S in water, using the penetration theory, from the following data for the absorption of H2S into a laminar jet of water at 20?C. Jet diameter = 1 cm, Jet length = 7 cm, and Solubility of H2S in water = 100 mol/m3 The average rate of absorption varies with the flow rate of the jet asfollows:

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Jet Flow Rate, em'/s Rate of Absorption, mol's x 10 1.5 0.143 0.568 3.0 1.278 4.25 2.372 6.15 7.20 3.571 5.142 8.75