Chemical Reaction Engineering Cold shot cooling is only practical when the feed temperature is __________ than the reaction temperature. Higher Much lower Much higher Lower Higher Much lower Much higher Lower ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A stirred tank reactor compared to tubular-flow reactor provides Permits operation at the optimum temperature for a long reaction time Higher overall selectivity for a first order consecutive reaction More uniform operating conditions All of these Permits operation at the optimum temperature for a long reaction time Higher overall selectivity for a first order consecutive reaction More uniform operating conditions All of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following resistances is not involved in a gas phase catalytic (gas- solid) reaction? Gas film and pore surface diffusion resistances for reactants Gas film and pore surface diffusion resistances for products Surface phenomenon resistance Ash resistance Gas film and pore surface diffusion resistances for reactants Gas film and pore surface diffusion resistances for products Surface phenomenon resistance Ash resistance ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A chemical reaction is of zero order, when the reaction rate is (where, CA = concentration of reactant) ∝ 1/CA Independent of temperature None of these ∝ CA ∝ 1/CA Independent of temperature None of these ∝ CA ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A reaction which is catalysed by an acid is also catalysed by any substance, which has a tendency to Gain a proton None of these Lose a proton Lose an electron Gain a proton None of these Lose a proton Lose an electron ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A plug-flow reactor is characterised by High capacity Presence of axial mixing Presence of lateral mixing Constant composition and temperature of reaction mixture High capacity Presence of axial mixing Presence of lateral mixing Constant composition and temperature of reaction mixture ANSWER DOWNLOAD EXAMIANS APP
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