Chemical Reaction Engineering Recycling back of outlet stream to the reactor from an ideal CSTR carrying out a first order liquid phase reaction will result in __________ in conversion. Decrease Increase Either A or B, depends on the type of reaction No change Decrease Increase Either A or B, depends on the type of reaction No change ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The rate expression for a heterogenous catalytic reaction is given by, - rA = K.KA PA(1 + KA.PA + Kr.PR), where K is surface reaction rate constant and KA and KR are absorption equilibrium constants of A and R respectively. If KR PR >> (1 + KA PA), the apparent activation energy EA is equal to (given E is the activation energy for the reaction and ΔHR and ΔHA are the activation energies of adsorption of R and A) E + ΔHA - ΔHR ΔHA + ΔHR E + ΔHA E E + ΔHA - ΔHR ΔHA + ΔHR E + ΔHA E ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For identical flow rate, feed composition and for elementary first order reactions, 'N' equal sized mixed reactors in series with a total volume 'V' gives the same conversion as a single plug flow reactor of volume 'V' for constant density systems. This is true, when the value of 'N' is ∞ >1 1 ≥1 ∞ >1 1 ≥1 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For the same residence time, which one will give the maximum conversion? Single tubular flow reactor (v = 5 litres) Two stirred tank (each of 2.5 litres) in series Stirred tank followed by tubular flow reactor (each of 2.5 litres) Single stirred tank (v = 5 litres) Single tubular flow reactor (v = 5 litres) Two stirred tank (each of 2.5 litres) in series Stirred tank followed by tubular flow reactor (each of 2.5 litres) Single stirred tank (v = 5 litres) ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The rate constant of a chemical reaction increases by increasing the Reactant's concentration Pressure Temperature None of these Reactant's concentration Pressure Temperature None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The reaction between oxygen and organic material is a/an __________ reaction. Photochemical Endothermic Biochemical Exothermic Photochemical Endothermic Biochemical Exothermic ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS