Penicillin is separated from fermentation broth by adsorption on an ion-exchange resin in a moving-bed column. The bed is 5 cm in diameter and contains 0.7 cm3 resin/cm3 bed. The density of the resin is 1.2 g/cm3, and the feed solution contains 8 g/l of the antibiotic. If the superficial velocity of liquid is 2 m/h and the overall mass transfer coefficient is 15h-1, determine the height of the column for an efficient antibiotic concentration of CL = 0.2 g/L. Assume an equilibrium relationship of CS = 25 (CL*)1/2, where CS is g solute/L resin and CL is g solute/L solution. The operational ratio of the volumetric flow rate of broth to resin is 10.

answer

the ions in solute supperate from eachouthere

true

hope that

definition

                    entropy is a measure of the randomness or the extent of disorder of a chemical process.

                      enthalpy is a measure of the heat change of a reaction occurring at a constant pressure.

measurement units:

                        entropy is measured in joule per kelvin (jk⁻¹)   whereas enthalpy is measured in joule per mole (jmol⁻¹)

requirements:

                            entropy has no requirements or limits, and its change is measured by the division between the heat change of the chemical process and the temperature.

                              in contrast, enthalpy can only be related to the heat change of the reaction under standard conditions.