Chemical Reaction Engineering Half life period of a chemical reaction is None of these Half of the residence time of a reaction The time required to reduce the concentration of the reacting substance to half its initial value Half of the space time of a reaction None of these Half of the residence time of a reaction The time required to reduce the concentration of the reacting substance to half its initial value Half of the space time of a reaction ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Equilibrium of a chemical reaction as viewed by kinetics is a __________ state. Dynamic unsteady Static steady None of these Dynamic steady Dynamic unsteady Static steady None of these Dynamic steady ANSWER DOWNLOAD EXAMIANS APP
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 1/(L√(K/D1)) L√(K/D1) ∞ 1 1/(L√(K/D1)) L√(K/D1) ∞ ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Helium-mercury method is used for the measurement of the __________ of the catalyst. Pore volume Surface area Both B & C Porosity Pore volume Surface area Both B & C Porosity ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For high conversion in a highly exothermic solid catalysed reaction, use a __________ bed reactor. Fluidised bed reactor followed by a fixed Fixed Fixed bed reactor followed by a fluidised Fluidised Fluidised bed reactor followed by a fixed Fixed Fixed bed reactor followed by a fluidised Fluidised ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering When the reaction is dominated by in-traparticle diffusion, the apparent order of reaction (nD) as measured is related to the true order (n) as ND = (n + 1)/2 ND = n/2 ND = n + 1 None of these ND = (n + 1)/2 ND = n/2 ND = n + 1 None of these ANSWER DOWNLOAD EXAMIANS APP
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