Chemical Reaction Engineering Catalyst is a substance, which __________ chemical reaction. Alters the value of equilibrium constant in a reversible Increases the speed of a Decreases the speed of a Can either increase or decrease the speed of a Alters the value of equilibrium constant in a reversible Increases the speed of a Decreases the speed of a Can either increase or decrease the speed of a ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Collision theory gives the rate constant for bimolecular reaction as None of these K α e-E/RT K α eE/RT K α √T.e-E/RT None of these K α e-E/RT K α eE/RT K α √T.e-E/RT ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering N' plug flow reactors in series with a total volume 'V' gives the same conversion as a single plug flow reactor of volume 'V' for __________ order reactions. Second Any Third First Second Any Third First 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. Diffusion through ash layer Film diffusion Either A, B or C Chemical reaction Diffusion through ash layer Film diffusion Either A, B or C Chemical reaction ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A catalyst in a chemical reaction __________ free energy change in the reaction. Decreases Increases Either A or B; depends on the type of catalyst Neither A nor B Decreases Increases Either A or B; depends on the type of catalyst Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering If n = overall order of a chemical reaction. a = initial concentration of reactant. t = time required to complete a definite fraction of the reaction. Then pick out the correct relationship. T ∝ 1/an T ∝ 1/an - 1 T ∝ an T ∝ 1/an + 1 T ∝ 1/an T ∝ 1/an - 1 T ∝ an T ∝ 1/an + 1 ANSWER DOWNLOAD EXAMIANS APP
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