Chemical Reaction Engineering Velocity of a chemical reaction Decreases with increase of reactant concentration Increases with increase of pressure of reactants for all reactions Decreases with increase in temperature None of these Decreases with increase of reactant concentration Increases with increase of pressure of reactants for all reactions Decreases with increase in temperature None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering __________ gas is normally employed in B.E.T.method of finding out the surface area of catalyst. CO₂ N₂ He H₂ CO₂ N₂ He H₂ ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In case of the irreversible unimolecular type, first order reaction, the fractional conversion at any time for constant volume system as compared to variable volume system is More Either A or B, depends on other factors Same Less More Either A or B, depends on other factors Same Less ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For the non catalytic reaction of particles with surrounding fluid, the same needed to achive the same fractional conversion for particles of different unchanging sizes is proportional to the 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 Considering the endotheomic dissociation of CaCO₃ in a closed vessel (CaCO₃ ⇋ CaO + CO₂), the pressure of CO₂ increases, if A catalyst is added The temperature is increased None of these An inert gas is pumped keeping the temperature constant A catalyst is added The temperature is increased None of these An inert gas is pumped keeping the temperature constant ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Carbon particles accummulated on the catalyst used in the gas oil cracking lies in the category of __________ poison. Selectivity Stability Deposited Chemisorbed Selectivity Stability Deposited Chemisorbed ANSWER DOWNLOAD EXAMIANS APP
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