Chemical Reaction Engineering The importance of diffusion in a catalyst are increased by An active surface of the catalyst Small pore diameter All of these Large catalyst particle size An active surface of the catalyst Small pore diameter All of these Large catalyst particle size ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A plug-flow reactor is characterised by Constant composition and temperature of reaction mixture Presence of axial mixing Presence of lateral mixing High capacity Constant composition and temperature of reaction mixture Presence of axial mixing Presence of lateral mixing High capacity ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following is not a dimension-less group used in catalysis ? (where, D = dispersion co-efficient, cm² /sec.D1 = diffusion co-efficient; cm²/sec L = length of the reactor, cm t = time, sec, v = volumetric flow rate, cm³/sec . V = volume, cm³.) None of these Reactor dispersion number (D/vL) Thiele modulus (L√(k/D1) Reduced time (vt/V) None of these Reactor dispersion number (D/vL) Thiele modulus (L√(k/D1) Reduced time (vt/V) ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For a __________ order reaction, the units of rate constant and rate of reaction are the same. Second Zero First Fractional Second Zero First Fractional ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering From among the following, choose one which is not an exothermic process. Oxidation of sulphur Ammonia synthesis Catalytic cracking Methanol synthesis Oxidation of sulphur Ammonia synthesis Catalytic cracking Methanol synthesis ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A photochemical reaction is __________ light. Catalysed by Used to convert heat energy into Accompanied with emission of Initiated by Catalysed by Used to convert heat energy into Accompanied with emission of Initiated by ANSWER DOWNLOAD EXAMIANS APP
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