Chemical Reaction Engineering In solid catalysed reactions the diffusional effects are more likely to affect the overall rate of reaction for Slow reactions in catalyst of small pore diameter Fast reactions in catalyst of small pore diameter Fast reaction in catalyst of large pore diameter Slow reactions in catalyst of large pore diameter Slow reactions in catalyst of small pore diameter Fast reactions in catalyst of small pore diameter Fast reaction in catalyst of large pore diameter Slow reactions in catalyst of large pore diameter ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering An example of autothermal reactor operation is Benzene oxidation Sulphur dioxide oxidation Ammonia synthesis Ethylene oxidation Benzene oxidation Sulphur dioxide oxidation Ammonia synthesis Ethylene oxidation ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The fractional volume change of the system for the isothermal gas phase reaction, A 3B , between no conversion and complete conversion is 1 2 0.5 3 1 2 0.5 3 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. Diffusion through ash layer Either A, B or C Chemical reaction Film diffusion Diffusion through ash layer Either A, B or C Chemical reaction Film diffusion ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Effectiveness factor (E) of a catalyst pellet is defined as, E = (actual rate within pore of catalyst/rate if notsnowed by pore diffusion) Effectiveness factor for a first order reaction is given by (where, T = Thiele modulus) Tan hT/tan T Tan hT/T None of these Tan T/T Tan hT/tan T Tan hT/T None of these Tan T/T ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering When all the limiting reactant is consumed in the reaction, the operational yield __________ the relative yield. Can be either greater or smaller than (depends on the type of reaction) Is smaller than Is greater than Equals Can be either greater or smaller than (depends on the type of reaction) Is smaller than Is greater than Equals ANSWER DOWNLOAD EXAMIANS APP
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