Chemical Reaction Engineering Brunaur, Emmet and Teller (BET) equation is used to determine the specific surface area of a porous particle but not the pore volume & the porosity of the catalyst bed. Which of the following postulates is not used to derive BET equation? There is no dynamic equilibrium between successive layer The adsorbed layer may be polymolecular in thickness and the heat of adsorption in each layer (except the first one) is involved in each of the evaporation process Langmuir None of these There is no dynamic equilibrium between successive layer The adsorbed layer may be polymolecular in thickness and the heat of adsorption in each layer (except the first one) is involved in each of the evaporation process Langmuir None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A space velocity of 5 hr⁻¹ means that A fixed conversion of a given batch of feed takes 5 hours Five reactor volumes of feed (at specified conditions) are being fed into the reactor per hour Cent per cent conversion can be achieved in at least 5 hours After every 5 hours, reactor is being filled with the feed A fixed conversion of a given batch of feed takes 5 hours Five reactor volumes of feed (at specified conditions) are being fed into the reactor per hour Cent per cent conversion can be achieved in at least 5 hours After every 5 hours, reactor is being filled with the feed ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering An isothermal irreversible reaction is being carried out in an ideal tubular flow reactor. The conversion in this case will __________ with decrease in space time. Increase exponentially Remain unchanged Decrease Increase Increase exponentially Remain unchanged Decrease Increase ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For multiple reactions, the flow pattern within the vessel affects the Neither A nor B Distribution of reaction products Both A and B Size requirement Neither A nor B Distribution of reaction products Both A and B Size requirement ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering If helium is introduced in a reactor containing O₂, SO₂ and SO₃ at equilibrium, so that total pressure increases while volume and temperature remains constant. In this case the dissociation of SO₃ (as per Le Chatlier principle) Decreases Remains unaltered Changes unpredictably Increases Decreases Remains unaltered Changes unpredictably Increases ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS