Helium-mercury method can be used to determine the _____________ of the catalyst particle?

Related Mcqs:

A first order reaction is to be treated in a series of two mixed reactors. The total volume of the two reactors is minimum, when the reactors are_____________________?

A. Equal in size B. Of different sizes C. Of such size that the ratio of their volumes is < 5 D. None of these...

A catalyst in a chemical reaction____________________?

A. Decreases the activation energy B. Alters the reaction mechanism C. Increases the frequency of collisions of reacting species D. All A., B. and C....

For identical flow rate and feed composition, X plug flow reactors (PER) in series with a total volume V gives the same conversion as single_______________?

A. CSTR of volume V B. PFR of volume V C. CSTR of volume V/X D. PFR of volume V/X...

Pick out the wrong statement ?

A. Autocatalytic reactions are exemplified by microbial fermentation reactions B. The slowest step has the greatest influence on the overall reaction rate in case of an irreversible series reaction C. The fractional conversion at any time is same for both the constant as well as the variable volume system in case of an irreversible unimolecular … Pick out the wrong statement ?Read More...

Effectiveness factor E. of a catalyst pellet is defined as, E = (actual rate within pore of the catalyst)/(rate if not snowed by pore diffusion), Effectiveness factor for a first order reaction is given by (where, T = Thiele modulus) ___________________?

A. tan hT/T B. tan T/T C. tan hT/tan T D. None of these...