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) ___________________?

Related Mcqs:

Arrhenius equation shows the variation of ___________________ with temperature?

A. Reaction rate B. Rate constant C. Energy of activation D. Frequency factor...

For a packed bed reactor; the presence of a long tail in the residence time distribution curve is an indication of ?

A. Ideal plug flow B. Bypass C. Dead zone D. Channelling...

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...

For the reaction as shown in the bellow figure, the rate of formation of Z is 0.2 gm mole/litre.hr. What is the rate of disappearance of X in gm mole/litre.hr ?

A. 0.4 B. 0.1 C. 0.2 D. None of these...

A chemical reaction, A → 3B, is conducted in a constant pressure vessel. Starting with pure A, the volume of the reaction mixture increases 3 times in 6 minutes. The fractional conversion is ___________________?

A. 0.33 B. 0.5 C. 1 D. Data insufficient, can’t be predicted...