Chemical Reaction Engineering A first order gaseous phase reaction is catalysed by a non-porous solid. The kinetic rate constant and the external mass transfer co-efficients are k and kg respectively. The effective rate constant (keff) is given by 1/keff = 1/k + 1/kg keff = (kkg)1/2 keff = k + kg keff = (k+ kg)/2 1/keff = 1/k + 1/kg keff = (kkg)1/2 keff = k + kg keff = (k+ kg)/2 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Photochemical reaction rate does not depend significantly on temperature, because The energy of reacting molecules exceeds the activation energy by absorption of light None of these It is a reversible reaction It is an exothermic reaction The energy of reacting molecules exceeds the activation energy by absorption of light None of these It is a reversible reaction It is an exothermic reaction ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following fixes the volume of a batch reactor for a particular conversion and production rate? Rate constant Density of mixture None of these Operating conditions (e.g. pressure and temperature) Rate constant Density of mixture None of these Operating conditions (e.g. pressure and temperature) ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The catalytic activity of enzymes is due to their capacity to lower the __________ energy. None of these Potential Activation Kinetic None of these Potential Activation Kinetic ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A trickle bed reactor is the one, which Processes three reactants at different flow rates Has altogether three streams either entering or leaving Processes three reactants with same flow rate Employs all the three phases (i.e.. .solid, liquid and gas) Processes three reactants at different flow rates Has altogether three streams either entering or leaving Processes three reactants with same flow rate Employs all the three phases (i.e.. .solid, liquid and gas) ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For a tubular flow reactor with uniform concentration and temperature, the independent variable is Diameter Length Time None of these Diameter Length Time None of these ANSWER DOWNLOAD EXAMIANS APP
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