321. The reaction in which one of the products of reaction acts as a catalyst is called a/an __________ reaction.
Biochemical
Photochemical
Catalytic
Autocatalytic
✅ The correct answer is option D.
Chemical Reaction Engineering MCQs
322. B.E.T. method of finding out surface area of a catalyst, uses the extension of __________ isotherm.
Langmuir
Freundlich
Tempkin
None of these
✅ The correct answer is option A.
324. Arrhenious equation represents graphically the variation between the __________ and temperature.
Rate of reaction
Frequency factor
Rate constant
Activation energy
✅ The correct answer is option C.
325. For a zero order chemical reaction, the
Half life period is directly proportion to the initial concentration of the reac-tants
Plot of products concentration with time is a straight line through the origin
Products concentration increases linerarly with time
All of the above
✅ The correct answer is option D.
326. Chemical kinetics can predict the __________ of a chemical reaction.
Rate
Feasibility
Both A & B
Neither A nor B
✅ The correct answer is option A.
327. Which of the following factors control the design of a fluid-solid reactor?
Reaction kinetics for single particle,
Size distribution of solids beingtreated
Flow patterns of solids and fluid in the reactor
All of the above
✅ The correct answer is option D.
328. Helium-mercury method can be used to determine the __________ of the catalyst particle.
Pore volume
Solid density
Porosity
All of the above
✅ The correct answer is option D.
329. To maximise the formation of R in the simultaneous reaction A + B → R , rR = 2CA0.5.CB2 A + B → S , rS = 1.5 CA . CB We should have
Low CA, low CB
Low CA, high CB
High CA, low CB
High CA, high CB
✅ The correct answer is option B.
330. The increase in the rate of reaction with temperature is due to
Increase in the number of effective collisions
Decrease in activation energy
Increase in the average kinetic energy of the reacting molecules
None of these
✅ The correct answer is option B.