Q. An aerated bioreactor will increase oxygen transfer rates with the addition of detergents because it

View solution

Q. Vortexing in stirred tank reactors can be prevented by

View solution

Q. Which of the following would be best described as an axial flow impeller?

View solution

Q. Henry's law relates

View solution

Q. The reason of using a flat disk in a Turbine is

View solution

Q. Which of the following is not considered among the three best-known theories of interphase mass transfer?

View solution

Q. Which of the following is most likely to cause an increase in the rate of oxygen transfer into a particular aerated fermentation system?

View solution

Q. At 25°C, the saturation concentration of oxygen in water is 1.26 mmol/l and the partial pressure of oxygen is 1 atm. The Henry's law constant will be

View solution

Q. Gas hold up, characterizing the hydrodynamics in a fermenter, mainly depends on the

View solution

Q. Which of the following will have the highest surface area available for oxygen transfer?

View solution

Q. A flooded impeller will lead to poor oxygen transfer rates because

View solution

Q. Power consumption by agitation is

View solution

Q. Which of the following impellers will provide radial flow?

View solution

Q. When liquid is pumped through cooling coil in a stirred tank reactor to cool. Which of the following is not correct?

View solution

Q. Swirling and vortex formation can be prevented by

View solution

Q. Power number is expressed as

View solution

Q. The power consumption in a stirring vessel can be assessed by using a

View solution

Q. Surface renewal theory predicts that the mass transfer coefficient is

View solution

Q. The oxygen transfer rate in a bioreactor will increase if

View solution

Q. Which of the following impellers are used for wide range of viscosities?

View solution