Chemical Reaction Engineering Cold shot cooling is only practical when the feed temperature is __________ than the reaction temperature. Much higher Lower Much lower Higher Much higher Lower Much lower Higher 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. Chemical reaction Either A, B or C Diffusion through ash layer Film diffusion Chemical reaction Either A, B or C Diffusion through ash layer Film diffusion ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In a reversible reaction, a catalyst increases the rate of forward reaction Only And the backward reaction equally To a greater extent than that of the backward reaction And decreases that of the backward reaction Only And the backward reaction equally To a greater extent than that of the backward reaction And decreases that of the backward reaction ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The dispersion number of perfect mixed flow is > 150 ∞ < 2100 > 150 ∞ < 2100 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following will give maximum gas conversion? Fixed bed reactor Semi-fluidised bed reactor Plug-flow catalytic reactor Fluidised bed reactor Fixed bed reactor Semi-fluidised bed reactor Plug-flow catalytic reactor Fluidised bed reactor ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Calcination reaction of limestone (CaCO₃ → CaO + CO₂) goes to completion in the rotary kiln, because Of high calcination temperature CaO is not dissociated CaO is more stable than CaCO₃ CO₂ escapes continuously Of high calcination temperature CaO is not dissociated CaO is more stable than CaCO₃ CO₂ escapes continuously ANSWER DOWNLOAD EXAMIANS APP
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