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.Management Sciences
Category: Chemical Reaction
Fluidised bed reactor is characterized by____________________?
A. Uniformity of temperature
B. Comparatively smaller equipment
C. Very small pressure drop
D. Absence of continuous catalyst regeneration facility
Which of the following is not a theory of homogeneous reaction ?
A. Collision theory and activated complex theory
B. Chain reaction theory
C. Radiation hypothesis
D. None of these
The energy balance equation over a tubular reactor under transient conditions is________________?
A. An ordinary non-linear differential equation
B. An algebraic differential equation
C. A linear partial differential equation
D. A non-linear partial differential equation
Pick out the wrong statement ?
A. In a batch reactor, which is exclusively used for liquid phase reactions; temperature pressure and composition may vary with time
B. In a semi-batch reactor, one reactant is charged batch wise, while the other reactant is fed continuously
C. In a continuous flow reactor, uniform concentration cannot be maintained throughout the vessel even in a well agitated system
D. In a continuous flow reactor, both the reactants and the products flow out continuously
A first order reaction A → B occurs in an isothermal porous catalyst pellet of spherical shape. If the concentration of A at the centre of the pellet is much less than at the external surface, the process is limited by__________________?
A. Diffusion within the pellet
B. Reaction
C. External mass transfer
D. None of the above
Decomposition rate of a liquid ‘X’ which decomposes as per the reaction as shown in the bellow figure is given by________________?
A. K1 . CX
B. (K1 + K2 + K3) CX
C. (K1 + K2) CX
D. (K2 + K3) CX
A batch reactor is characterised by ____________________?
A. Constant residence time
B. Variation in extent of reaction and properties of the reaction mixture with time
C. Variation in reactor volume
D. Very low conversion
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