A plug-flow reactor is characterized by _____________________?

Related Mcqs:

Brunauer, Emmet and Teller (BET) equation is used to determine the specific surface area of a porous particle but not the pore volume & the porosity of the catalyst bed. Which of the following postulates is not used to derive BET equation ?

A. Langmuir’s assumption applies to every adsorbed layer B. There is no dynamic equilibrium between successive layer C. The adsorbed layer may be polymolecular in thickness and the heat of adsorption in each layer (except the first one) is involved in each of the evaporation process D. None of these...

Which of the following fixes the volume of a batch reactor for a particular conversion and production rate ?

A. Operating conditions (e.g. pressure and temperature) B. Rate constant C. Density of mixture D. None of these...

The concentration of A in a first order reaction, A → B, decreases_____________________?

A. Linearly with time B. Exponentially with time C. Very abruptly towards the end of the reaction D. Logarithmically with time...

For the non-catalytic reaction of particles with surrounding fluid, the time needed to achieve the same fractional conversion for particles of different but unchanging sizes is proportional to the square of particle diameter, when the _______________ is the controlling resistance?

A. Film diffusion B. Diffusion through ash layer C. Chemical reaction D. Either A., B. or C....

Pick out the wrong statement?

A. In a first order reaction, A → products; the reaction becomes slower as it proceeds, because the concentration of A decreases and the rate is proportional to the concentration of A B. Transition state theory approaches the problem of calculating reaction rates by concentrating on the idea of activated complexes C. According to the … Pick out the wrong statement?Read More...