Chemical Reaction Engineering Mean residence time is equal to the space time, when The temperature, pressure and the density of reaction mixture remains constant throughout the reactor There is no change in number of moles in gaseous reaction All of these The feed rate is measured at temperature and pressure in the reactor The temperature, pressure and the density of reaction mixture remains constant throughout the reactor There is no change in number of moles in gaseous reaction All of these The feed rate is measured at temperature and pressure in the reactor ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which one is the rate controlling step in a solid-gas non-catalytic reaction occurring at very high temperature? Film diffusion Chemical reaction Ash layer diffusion Pore diffusion Film diffusion Chemical reaction Ash layer diffusion Pore diffusion ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Pure A in gas phase enters a reactor 50% of this A is converted to B through the reaction, A 3B. Mole fraction of A in the exit stream is 43832 43834 43833 43835 43832 43834 43833 43835 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. Diffusion through ash layer Film diffusion Either A, B or C Chemical reaction Diffusion through ash layer Film diffusion Either A, B or C Chemical reaction ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering What is the dispersion number for a CSTR? 1 < 1 0 ∞ 1 < 1 0 ∞ ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering If CA is the quantity of reactants initially present, the quantity left after 'n' half periods will be equal to (CA)1/n (CA)1/2n (1/2)n.CA (CA)n (CA)1/n (CA)1/2n (1/2)n.CA (CA)n ANSWER DOWNLOAD EXAMIANS APP
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