Chemical Reaction Engineering The fractional volume change between no conversion and complete conversion, for the isothermal gas phase reaction, 2A → R, is 1 -0.5 0.5 1.5 1 -0.5 0.5 1.5 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering B.E.T. method can be used to determine the __________ of a porous catalyst. Pore volume Solid density All of these Surface area Pore volume Solid density All of these Surface area ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Velocity of a chemical reaction Increases with increase of pressure of reactants for all reactions None of these Decreases with increase in temperature Decreases with increase of reactant concentration Increases with increase of pressure of reactants for all reactions None of these Decreases with increase in temperature Decreases with increase of reactant concentration ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In an ideal tubular-flow reactor There is a uniform velocity across the radius Mixing takes place in radial direction All of these There is no mixing in longitudinal direction There is a uniform velocity across the radius Mixing takes place in radial direction All of these There is no mixing in longitudinal direction ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For the non-catalytic reaction of particles with surrounding fluid, the time needed to achieve the same fractional conversion for particles of different but unchanging sizes is proportional to the square of particle diameter, when the __________ is the controlling resistance. Film diffusion Chemical reaction Diffusion through ash layer Either A, B or C Film diffusion Chemical reaction Diffusion through ash layer Either A, B or C ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The reaction rate almost gets doubled for 10°C rise in temperature. This is due to the fact that the Value of threshold energy decreases Fraction of molecules having threshold energy increases Increased temperature reduces the activation energy Collision frequency increases Value of threshold energy decreases Fraction of molecules having threshold energy increases Increased temperature reduces the activation energy Collision frequency increases ANSWER DOWNLOAD EXAMIANS APP
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