A. A CSTR
B. CSTR in series
C. A plug flow reactor followed by CSTR
D. CSTR followed by a plug flow reactor
Related Mcqs:
- Autocatalytic reactions are best carried out in a_________________?
A. CSTR
B. CSTR in series
C. Plug flow reactor
D. Recycle reactor - 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 - In an exothermic reaction, the energy of the reacting substances as compared to that of products is____________________?
A. More
B. Less
C. Same
D. Either A. or B., depends on order of reaction - Which of the following is the optimum operating condition for an exothermic reversible reaction taking place in a plug-flow reactor ?
A. Temperature should be high in the beginning and decreased towards the end of the reaction
B. Very low temperature should be used throughout the reaction
C. Very high temperature should be used throughout the reaction
D. None of these - A typical example of an exothermic reversible reaction conducted at high pressure in industry is____________________?
A. Dehydration of ethanol
B. Methanol synthesis
C. Reformation of methane
D. Polymerisation of ethylene - A CSTR is to be designed in which an exothermic liquid phase first order reaction of the type, A → R, is taking place. The reactor is to be provided with a jacket in which coolant is flowing. Following data is given: CA0= 5 kmole/m3; XA = 0.5; Feed temperature = reactor temperature = 40°C. Rate constant at 40°C = 1 min-1; (ΔH) = – 40kJ/mole; ρ = 1000kg/m3 CP = 4 J/gm.°C ; q = 10-3 m3/min (ρ and CP are same for the reactant and product streams). The amount of heat to be removed is_________________?
A. 2/3 kW
B. 1 kW
C. 5/3 kW
D. 4 kW - When an exothermic reversible reaction is conducted adiabatically, the rate of reaction____________________?
A. Continuously increases
B. Continuously decreases
C. Passes through a maximum
D. Passes through a minimum - The decomposition of A into B is represented by the exothermic reaction, A ⇌ 2B. To achieve maximum decomposition, it is desirable to carry out the reaction ?
A. At high P and high T
B. At low P and high T
C. At low P and low T
D. At high P and low T - For high conversion in a highly exothermic solid catalysed reaction, use a ______________ bed reactor?
A. Fixed
B. Fluidised bed reactor followed by a fixed
C. Fixed bed reactor followed by a fluidised
D. Fluidised - From among the following, choose one which is not an exothermic process ?
A. Methanol synthesis
B. Catalytic cracking
C. Ammonia synthesis
D. Oxidation of sulphur
