Chemical Reaction Engineering Half life period of a chemical reaction is Half of the residence time of a reaction None of these Half of the space time of a reaction The time required to reduce the concentration of the reacting substance to half its initial value Half of the residence time of a reaction None of these Half of the space time of a reaction The time required to reduce the concentration of the reacting substance to half its initial value ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For an isothermal second order aqueous phase reaction, A → B, the ratio of the time required for 90% conversion to the time required for 45% conversion is 22 2 11 4 22 2 11 4 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering If the pore diffusion controls in a catalytic reaction, the apparent activation energy Ea is equal to (E + ED) where ED is activation due to diffusion ED/2 The intrinsic activation energy E (E + ED)/2 (E + ED) where ED is activation due to diffusion ED/2 The intrinsic activation energy E (E + ED)/2 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The conversion of a reactant, undergoing a first order reaction, at a time equal to three times the half life of the reaction is Data insufficient to calculate 0.5 0.875 0.425 Data insufficient to calculate 0.5 0.875 0.425 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For a gaseous phase reaction, rate of reaction is equal to K. CA . CB. If the volume of the reactor is suddenly reduced to l/4th of its initial volume, then the rate of reaction compared to the original rate will be __________ times. 43838 16 8 43846 43838 16 8 43846 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering __________ is the response curve for a step input signal from a reactor. C-curve S-curve None of these I-curve C-curve S-curve None of these I-curve ANSWER DOWNLOAD EXAMIANS APP
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