Chemical Reaction Engineering In a chemical reaction, __________ are conserved. Masses Atoms Ions Both B & C Masses Atoms Ions Both B & C ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Promoter is added to the catalyst to improve its Surface area Sensitivity Porosity None of these Surface area Sensitivity Porosity None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering If the pore diffusion controls in a catalytic reaction, the apparent activation energy Ea is equal to ED/2 (E + ED) where ED is activation due to diffusion (E + ED)/2 The intrinsic activation energy E ED/2 (E + ED) where ED is activation due to diffusion (E + ED)/2 The intrinsic activation energy E ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering If the rate of a chemical reaction becomes slower at a given temperature, then the Entropy changes Initial concentration of the reactants remains constant Free energy of activation is higher Free energy of activation is lower Entropy changes Initial concentration of the reactants remains constant Free energy of activation is higher Free energy of activation is lower ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In case of staged packed bed reactors carrying out exothermic reaction, use High recycle for pure gas Cold shot operations for a dilute solution requiring large preheating to bring the stream upto the reaction temperature Plug flow for dilute liquid requiring no large preheating of feed All of these High recycle for pure gas Cold shot operations for a dilute solution requiring large preheating to bring the stream upto the reaction temperature Plug flow for dilute liquid requiring no large preheating of feed All of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Time required for 50% decomposition of a liquid in an isothermal batch reactor following first order kinetics is 2 minutes. The time required for 75% decomposition will be about __________ minutes. 6 8 4 3 6 8 4 3 ANSWER DOWNLOAD EXAMIANS APP
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