1). Write the equation for the global mass transfer coefficient from the gas side (Kg). 2). Propose an acceptable final concentration of microbes. Justify your choice with equations. Hint: use the design A value and n = 102. 3). Which model do you use to calculate the gas-liquid mass transfer? List the main assumptions. 1). Write the equation for the global mass transfer coefficient from the gas side (Kg). 2). Propose an acceptable final concentration of microbes. Justify your choice with equations. Hint: use the design A value and n = 102. 3). Which model do you use to calculate the gas-liquid mass transfer? List the main assumptions