Question

If the stirring speed increased from 300 to 500 rpm leads to an increase in the reaction rate by two folds. Then it may be concluded that

a.

the reaction was mass transfer limited at 300 rpm

b.

the reaction was mass transfer limited at 500 rpm

c.

the reaction did not involve any mass transfer step

d.

the movement of molecules in the reactor at 300 rpm occurred due to diffusion alone

Answer: (a).the reaction was mass transfer limited at 300 rpm

Interact with the Community - Share Your Thoughts

Uncertain About the Answer? Seek Clarification Here.

Understand the Explanation? Include it Here.

Q. If the stirring speed increased from 300 to 500 rpm leads to an increase in the reaction rate by two folds. Then it may be concluded that

Similar Questions

Explore Relevant Multiple Choice Questions (MCQs)

Q. An increase in the heat transfer in the stirred tank reactor will be observed at

Q. The effect of increasing the stirrer speed in an unbaffled stirred tank reactor is that

Q. Turbulent flow range of mixing speed is obtained for

Q. For laminar flow, Reynolds number is correlated with power number as (where K, a constant which depends on the container geometry and shape of stirrer; Rei is Reynolds number for agitator; Di, stirrer diameter and N, stirrer speed)

Q. For turbulent flow, Reynolds number is correlated with power number as (where K, a constant which depends on the container geometry and shape of stirrer; Rei, is Reynolds number for agitator; Di, stirrer diameter and N, stirrer speed)

Q. In a bioreactor, if at a particular time the oxygen transfer rate is 23 kg.h­¹, then the oxygen uptake will be

Q. In a two-phase system where the continuous phase remains in place, the gas hold up can be expressed as (where Vs and Vt are the superficial gas velocity and bubble rise velocity)

Q. What is the effect of the concentration of dissolved salts and sugars on the oxygen transfer rate?

Q. Which of the following impellers generate a flow parallel to the axis of shaft?

Q. In a tall reactor, oxygen transfer rates will be

Q. Which of the following impeller is used in situation where strong vertical currents are desirable for suspending heavily particles?

Recommended Subjects

Are you eager to expand your knowledge beyond Biochemical Engineering? We've handpicked a range of related categories that you might find intriguing.

Click on the categories below to discover a wealth of MCQs and enrich your understanding of various subjects. Happy exploring!