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 = k + kg keff = (kkg)1/2 keff = (k+ kg)/2 1/keff = 1/k + 1/kg keff = k + kg keff = (kkg)1/2 keff = (k+ kg)/2 1/keff = 1/k + 1/kg ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A reactor is generally termed as an autoclave, when it is a High pressure tubular reactor High pressure batch reactor Atmospheric pressure CSTR Atmospheric pressure tank reactor High pressure tubular reactor High pressure batch reactor Atmospheric pressure CSTR Atmospheric pressure tank reactor ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering When all the limiting reactant is consumed in the reaction, the operational yield __________ the relative yield. Can be either greater or smaller than (depends on the type of reaction) Is greater than Equals Is smaller than Can be either greater or smaller than (depends on the type of reaction) Is greater than Equals Is smaller than ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For a gaseous phase reaction, rate of reaction is equal to K. CA . CB. If the volume of the reactor is suddenly reduced to l/4th of its initial volume, then the rate of reaction compared to the original rate will be __________ times. 8 16 43838 43846 8 16 43838 43846 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The synthesis of proteins and metabolism in biological objects occur in the presence of biocatalyst called A ferment or an enzyme None of these Haemoglobin Fungi A ferment or an enzyme None of these Haemoglobin Fungi ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For the liquid phase parallel reactions:R, rR = K?.CA2; E? = 80 KJ/moleS, rS = K?.CA ; E? = 120 KJ/mole The desired product is R. A higher selectivity of R will be achieved, if the reaction is conducted at High temperature in a PFR Low temperature in a CSTR High temperature in a CSTR Low temperature in a PFR High temperature in a PFR Low temperature in a CSTR High temperature in a CSTR Low temperature in a PFR ANSWER DOWNLOAD EXAMIANS APP
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