Chemical Reaction Engineering A trickle bed reactor is the one, which Processes three reactants at different flow rates Employs all the three phases (i.e.. .solid, liquid and gas) Has altogether three streams either entering or leaving Processes three reactants with same flow rate Processes three reactants at different flow rates Employs all the three phases (i.e.. .solid, liquid and gas) Has altogether three streams either entering or leaving Processes three reactants with same flow rate ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For a first order isothermal chemical reaction in a porous catalyst, the effectiveness factor is 0.3. The effectiveness factor will increase if the Catalyst size is reduced or the catalyst diffusivity is reduced Catalyst size is increased or the catalyst diffusivity is increased Catalyst size is increased or the catalyst diffusivity is reduced Catalyst size is reduced or the catalyst diffusivity is increased Catalyst size is reduced or the catalyst diffusivity is reduced Catalyst size is increased or the catalyst diffusivity is increased Catalyst size is increased or the catalyst diffusivity is reduced Catalyst size is reduced or the catalyst diffusivity is increased ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following factors control the deactivation of a porous catalyst pellet? Decay reactions All of these Form of surface attack by poison Pore diffusion Decay reactions All of these Form of surface attack by poison Pore diffusion ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In case of calcination of limestone, CaCO₃ CaO + CO₂, the addition of more of CaO will result in __________ in the concentration of CO₂. Unpredictable from the data Decrease No change Increase Unpredictable from the data Decrease No change Increase ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Calcination reaction of limestone (CaCO₃ → CaO + CO₂) goes to completion in the rotary kiln, because CaO is more stable than CaCO₃ Of high calcination temperature CaO is not dissociated CO₂ escapes continuously CaO is more stable than CaCO₃ Of high calcination temperature CaO is not dissociated CO₂ escapes continuously ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Variables affecting the rate of homogeneous reactions are Temperature and composition only Pressure, temperature and composition Pressure and composition only Pressure and temperature only Temperature and composition only Pressure, temperature and composition Pressure and composition only Pressure and temperature only ANSWER DOWNLOAD EXAMIANS APP
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