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 products Ash resistance Gas film and pore surface diffusion resistances for reactants Surface phenomenon resistance Gas film and pore surface diffusion resistances for products Ash resistance Gas film and pore surface diffusion resistances for reactants Surface phenomenon resistance ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The equilibrium constant of a catalytic chemical reaction __________ due to the presence of a catalyst. Decreases Unpredictable from the data Remains unaffected Increases Decreases Unpredictable from the data Remains unaffected Increases ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For the non catalytic reaction of particles with surrounding fluid, the same needed to achive the same fractional conversion for particles of different unchanging sizes is proportional to the particle diameter, when the __________ is the controlling resistance. Chemical reaction Diffusion through ash layer Film diffusion Either A, B or C Chemical reaction Diffusion through ash layer Film diffusion Either A, B or C ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering If the catalyst pore size is small in comparison with the mean free path, collisions with the pore wall controls the process'. The diffusivity under this condition is called 'Knudsen diffusivity', which is affected by the Temperature Both A & B Pressure Neither A nor B Temperature Both A & B Pressure Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Integral method for analysing the kinetic data is used Both A and B None of these When the data are scattered For testing specific mechanisms with simple rate expressions Both A and B None of these When the data are scattered For testing specific mechanisms with simple rate expressions ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following is an autocatalytic reaction? Ammonia synthesis reaction Microbial fermentation reaction Photochemical reactions Enzyme fermentation reaction Ammonia synthesis reaction Microbial fermentation reaction Photochemical reactions Enzyme fermentation reaction ANSWER DOWNLOAD EXAMIANS APP
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