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.Management Sciences
A. Initiates a chemical reaction and is a catalyst by itself
B. Alters the position of equilibrium in a reversible reaction
C. Increases the number of active centres by increasing the unevenness of catalyst surface and by
creating discontinuities in the crystals
D. All A., B. and C.
Related Mcqs:
- In a zero order reaction, reactants concentration does not change with time and the_________________?
- A. Time for half change is half the time taken for completion of the reaction B. Time for half change is independent of the initial concentration C. Time for completion of the reaction is independent of the initial concentration D. Reaction rate is trebled when the initial concentration is trebled...
- 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...
- The gas phase reaction 2A ⇌ B is carried out in an isothermal plug flow reactor. The feed consists of 80 mole % A and 20 mole % inerts. If the conversion of A at the reactor exit is 50%, then CA/CA0 at the outlet of the reactor is _______________________?
- A. 2/3 B. 5/8 C. 1/3 D. 3/8...
- The minimum energy required to allow a chemical reaction to proceed is termed as the ‘threshold energy ‘. Chemical reactions with low activation energy are ________________?
- A. Always irreversible B. Insensitive to temperature changes C. Mostly irreversible D. Highly temperature sensitive...
- The excess energy of reactants in a chemical reaction required to dissociate into products is termed as the _______________ energy?
- A. Activation B. Potential C. Binding D. Threshold...
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