Chemical Reaction Engineering Helium-mercury method is used for the measurement of the __________ of the catalyst. Surface area Pore volume Both B & C Porosity Surface area Pore volume Both B & C Porosity ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The eddy diffusivity for a liquid in plug flow must be ∞ Between 0 and 1 1 0 ∞ Between 0 and 1 1 0 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Autocatalytic reactions are best carried out in a CSTR in series Recycle reactor CSTR Plug flow reactor CSTR in series Recycle reactor CSTR Plug flow reactor ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Photochemical reaction rate does not depend significantly on temperature, because It is an exothermic reaction The energy of reacting molecules exceeds the activation energy by absorption of light It is a reversible reaction None of these It is an exothermic reaction The energy of reacting molecules exceeds the activation energy by absorption of light It is a reversible reaction None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A catalyst is said to be a negative catalyst, ifit Does not initiate the reaction Reduces the value of equilibrium constant Retards the rate of reaction All of these Does not initiate the reaction Reduces the value of equilibrium constant Retards the rate of reaction All of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A first order gaseous phase reaction is catalysed by a non-porous solid. The kinetic rate constant and the external mass transfer co-efficients are k and kg respectively. The effective rate constant (keff) is given by keff = (kkg)1/2 keff = k + kg 1/keff = 1/k + 1/kg keff = (k+ kg)/2 keff = (kkg)1/2 keff = k + kg 1/keff = 1/k + 1/kg keff = (k+ kg)/2 ANSWER DOWNLOAD EXAMIANS APP
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