Chemical Reaction Engineering Slurry reactors are characterised by the Lack of intraparticle diffusion resistance Neither A nor B Presence of two mobile phases Both A and B Lack of intraparticle diffusion resistance Neither A nor B Presence of two mobile phases Both A and B ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering What is the order of a chemical reaction in which doubling the initial concentration of the reactants doubles the half life time of the reaction? Zero 3 1 2 Zero 3 1 2 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The rate expression for a heterogenous catalytic reaction is given by, - rA = K.KA PA(1 + KA.PA + Kr.PR), where K is surface reaction rate constant and KA and KR are absorption equilibrium constants of A and R respectively. If KR PR >> (1 + KA PA), the apparent activation energy EA is equal to (given E is the activation energy for the reaction and ΔHR and ΔHA are the activation energies of adsorption of R and A) E + ΔHA - ΔHR E E + ΔHA ΔHA + ΔHR E + ΔHA - ΔHR E E + ΔHA ΔHA + ΔHR ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A backmix reactor Employs mixing in axial direction only Is same as ideal stirred tank reactor Is same as plug-flow reactor Is most suitable for gas phase reaction Employs mixing in axial direction only Is same as ideal stirred tank reactor Is same as plug-flow reactor Is most suitable for gas phase reaction ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Fractional conversion __________ with increase in pressure for ammonia synthesis reaction i.e., N₂ + 3H₂ ⇋ 2NH₃. Decreases Unpredictable from the data Increases Remains unchanged Decreases Unpredictable from the data Increases Remains unchanged ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Helium-mercury method is used for the measurement of the __________ of the catalyst. Both B & C Porosity Surface area Pore volume Both B & C Porosity Surface area Pore volume ANSWER DOWNLOAD EXAMIANS APP
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