Chemical Reaction Engineering The reason why a catalyst increases the rate of reaction is that, it Decreases the molecular collision diameter None of these Increases the activation energy Decreases the energy barrier for reaction Decreases the molecular collision diameter None of these Increases the activation energy Decreases the energy barrier for reaction ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A first order reaction A → B occurs in an isothermal porous catalyst pellet of spherical shape. If the concentration of A at the centre of the pellet is much less than at the external surface, the process is limited by None of these External mass transfer Reaction Diffusion within the pellet None of these External mass transfer Reaction Diffusion within the pellet ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The equilibrium constant of a catalytic chemical reaction __________ due to the presence of a catalyst. Unpredictable from the data Increases Remains unaffected Decreases Unpredictable from the data Increases Remains unaffected Decreases ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Threshold energy in a reaction is equal to the Normal energy of reactants Sum of A & B Neither A nor B Activation energy Normal energy of reactants Sum of A & B Neither A nor B Activation energy ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Sulphuric acid is used as a catalyst in the Hydrogenation of oils None of these Gas phase oxidation of SO₂ in chamber process Alkylation of hydrocarbons Hydrogenation of oils None of these Gas phase oxidation of SO₂ in chamber process Alkylation of hydrocarbons ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For a homogeneous reaction of nth order, the dimension of the rate constant is given by (concentration)n - 1/(time) None of these (concentration)1 - n/(time) L/(time)n (concentration)n - 1/(time) None of these (concentration)1 - n/(time) L/(time)n ANSWER DOWNLOAD EXAMIANS APP
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