Estimate the mass transfer coefficient, kc, in a wetted-wall column (wetted with benzene) for the transfer of benzene into carbon dioxide at 0oc. the carbon dioxide gas velocity through the column is 1.25 m/s. the diameter of the column is 0.16 m. assume that the benzene concentration in the carbon dioxide gas is very low.

mass density of co2 = 1.966 kg/m3
viscosity of co2 = 1.35 x 10-5 kg/m? s
diffusivity of benzene in co2 = 5.28 e-6 m2/s
molecular weight of co2 = 44 g/g mol
molecular weight of benzene = 78 g/g mol
note that the friction factor, f, can be correlated with the reynolds number, re, as follows: f/2 = 0.023re^(-0.2) for re between 5,000-200,000
calculate kc based on (a) the reynolds analogy, (b) the chilton-colburn analogy, (c) mass transfer correlation (use the table given in the class). which mass transfer coefficient is more accurate and why?

the answer is 1 i believe

56 moles of   lieter in chemistry

answer : one can design an experiment using a liquid and an additive that can be added to the liquid and observe the chemical changes in the reaction species.

one would need a beaker which is filled with a known amount of the liquid in which thermometer is placed to measure the temperature changes; after addition of the additive to the liquid solution one can note down the temperature change and find whether the reaction is endothermic or exothermic in nature. by subtracting the initial temperature value with the final temperature one can find the temperature changes.

various combinations of liquid and additive can be used. liquid in this case can be a known quantity of water and additives can be epsom salt or without epsom salt the experiment can be conducted to notice the changes. water and ice, hydrogen peroxide and dry yeast, vinegar and baking soda,etc.