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)/2 keff = k + kg 1/keff = 1/k + 1/kg keff = (kkg)1/2 keff = (k+ kg)/2 keff = k + kg 1/keff = 1/k + 1/kg ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The half life period of a first order reaction is given by (where, K = rate constant. ) 6.93 K 2.5 K 1.5 K 0.693/K 6.93 K 2.5 K 1.5 K 0.693/K ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Catalyst is a substance, which __________ chemical reaction. Decreases the speed of a Increases the speed of a Alters the value of equilibrium constant in a reversible Can either increase or decrease the speed of a Decreases the speed of a Increases the speed of a Alters the value of equilibrium constant in a reversible Can either increase or decrease the speed of a ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A chemical reaction is of zero order, when the reaction rate is (where, CA = concentration of reactant) None of these ∝ 1/CA ∝ CA Independent of temperature None of these ∝ 1/CA ∝ CA Independent of temperature ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Higher free energy of activation of a chemical reaction (at a given temperature) implies Higher equilibrium conversion Slower rate of reaction Both B and C Higher rate of reaction Higher equilibrium conversion Slower rate of reaction Both B and C Higher rate of reaction ANSWER DOWNLOAD EXAMIANS APP
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