Chemical Reaction Engineering Organic catalysts differ from the inorganic catalyst in the sense that the former is Proteinous in nature Active at cryogenic temperatures only Active at very high temperature only Prohibitively costly Proteinous in nature Active at cryogenic temperatures only Active at very high temperature only Prohibitively costly ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For a fluidised bed reactor, the most suitable/relevant model is a __________ model. Plug flow Bubbling bed Tank in series None of these Plug flow Bubbling bed Tank in series None of these 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. Either A, B or C Film diffusion Chemical reaction Diffusion through ash layer Either A, B or C Film diffusion Chemical reaction Diffusion through ash layer ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Variables affecting the rate of homogeneous reactions are Pressure, temperature and composition Pressure and temperature only Pressure and composition only Temperature and composition only Pressure, temperature and composition Pressure and temperature only Pressure and composition only Temperature and composition only ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Mean residence time is equal to the space time, when There is no change in number of moles in gaseous reaction The feed rate is measured at temperature and pressure in the reactor All of these 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 The feed rate is measured at temperature and pressure in the reactor All of these The temperature, pressure and the density of reaction mixture remains constant throughout the reactor ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Helium-mercury method can be used to determine the __________ of the catalyst particle. Porosity All of these Solid density Pore volume Porosity All of these Solid density Pore volume ANSWER DOWNLOAD EXAMIANS APP
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