Chemical Reaction Engineering A catalyst in a chemical reaction __________ free energy change in the reaction. Increases Neither A nor B Either A or B; depends on the type of catalyst Decreases Increases Neither A nor B Either A or B; depends on the type of catalyst Decreases 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 The temperature is increased None of these A catalyst is added An inert gas is pumped keeping the temperature constant The temperature is increased None of these A catalyst is added An inert gas is pumped keeping the temperature constant ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The value of steric factor 'P' in the equation k = PZeE/RT usually ranges from L.l.to 10² None of these L.0 to 10⁻⁸ 0.1 to 0.9 L.l.to 10² None of these L.0 to 10⁻⁸ 0.1 to 0.9 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 1/keff = 1/k + 1/kg keff = k + kg keff = (k+ kg)/2 keff = (kkg)1/2 1/keff = 1/k + 1/kg keff = k + kg keff = (k+ kg)/2 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Catalytic action in a catalytic chemical reaction follows from the ability of catalyst to change the Activation energy Heat of reaction Equilibrium constant None of these Activation energy Heat of reaction Equilibrium constant None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Fractional conversion __________ for an exothermic reversible chemical reaction, when the temperature is maximum. Unpredictable from the data Remains unchanged Increases Decreases Unpredictable from the data Remains unchanged Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
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