Chemical Reaction Engineering The effectiveness factor for large value of Thiele modulus (L√(K/D1)) of a solid catalysed first order reaction is equal to (where, L = length of the reactor, cm, D1 = diffusion co-efficient, cm²/second) 1 L√(K/D1) ∞ 1/(L√(K/D1)) 1 L√(K/D1) ∞ 1/(L√(K/D1)) ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A reaction in which one of the products of reaction acts as a catalyst is called a/an __________ reaction. Catalytic Autocatalytic None of these Photochemical Catalytic Autocatalytic None of these Photochemical ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The reaction between oxygen and organic material is a/an __________ reaction. Endothermic Exothermic Photochemical Biochemical Endothermic Exothermic Photochemical Biochemical ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following is not a chemical step in a fluid solid catalytic reaction? Surface chemical reaction Adsorption Desorption None of these Surface chemical reaction Adsorption Desorption None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The reaction rate almost gets doubled for 10°C rise in temperature. This is due to the fact that the Fraction of molecules having threshold energy increases Collision frequency increases Value of threshold energy decreases Increased temperature reduces the activation energy Fraction of molecules having threshold energy increases Collision frequency increases Value of threshold energy decreases Increased temperature reduces the activation energy ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Oil is hydrogenated using nickel catalyst in a __________ reactor. Slurry Fixed bed Fluidised bed Batch Slurry Fixed bed Fluidised bed Batch ANSWER DOWNLOAD EXAMIANS APP
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