Chemical Reaction Engineering A batch reactor is characterised by Variation in reactor volume Constant residence time Variation in extent of reaction and properties of the reaction mixture with time Very low conversion Variation in reactor volume Constant residence time Variation in extent of reaction and properties of the reaction mixture with time Very low conversion ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A catalyst loses its activity due to Agglomeration of metal particles caused by thermal sintering of the solid surface All of these Loss in surface area of the active component Covering of the catalytic active sites by a foregin substance Agglomeration of metal particles caused by thermal sintering of the solid surface All of these Loss in surface area of the active component Covering of the catalytic active sites by a foregin substance ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Overall rate of reaction in a heterogenous catalytic reaction depends upon the mass and energy transfer from the fluid to solid surface and its rate of reaction is usually __________ the concentration of catalyst, if it does not entail a chain mechanism. Proportional to Proportional to the square of Inversely proportional to Independent of Proportional to Proportional to the square of Inversely proportional to Independent of ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Semibatch reactor is preferred, when a/an A highly exothermic reaction is to be controlled A gas is to be reacted with liquid (e.g. hydrogenation of fat) Undersirable side reaction (at high concentration of one of the reactants) is to be avoided All of these A highly exothermic reaction is to be controlled A gas is to be reacted with liquid (e.g. hydrogenation of fat) Undersirable side reaction (at high concentration of one of the reactants) is to be avoided All of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering With decrease in temperature, the equilibrium conversion of a reversible endother- mic reaction Decreases Increases linearly with temperature Increases Remains unaffected Decreases Increases linearly with temperature Increases Remains unaffected ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For nearly isothermal operation involving large reaction time in a liquid-phase reaction, the most suitable reactor is a __________ reactor. Fixed bed Batch Stirred tank Tubular flow Fixed bed Batch Stirred tank Tubular flow ANSWER DOWNLOAD EXAMIANS APP
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