Chemical Reaction Engineering A batch reactor is characterised by Constant residence time Variation in extent of reaction and properties of the reaction mixture with time Very low conversion Variation in reactor volume Constant residence time Variation in extent of reaction and properties of the reaction mixture with time Very low conversion Variation in reactor volume ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The half life period of a first order reaction is given by (where, K = rate constant. ) 1.5 K 2.5 K 0.693/K 6.93 K 1.5 K 2.5 K 0.693/K 6.93 K ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Mean residence time is equal to the space time, when There is no change in number of moles in gaseous reaction All of these The temperature, pressure and the density of reaction mixture remains constant throughout the reactor The feed rate is measured at temperature and pressure in the reactor There is no change in number of moles in gaseous reaction All of these The temperature, pressure and the density of reaction mixture remains constant throughout the reactor The feed rate is measured at temperature and pressure in the reactor ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following does not produce a change in the value of rate constant of a reaction? Temperature Concentration and catalyst None of these Pressure Temperature Concentration and catalyst None of these Pressure ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering If Thiele modulus is __________ , then the pore diffusion resistance in a catalyst may be considered as negligible. < 0.5 > 0.5 ∞ 0 < 0.5 > 0.5 ∞ 0 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following is a controlling factor in very fast heterogeneous reaction? Composition of reactant Pressure Heat and mass transfer effects Temperature Composition of reactant Pressure Heat and mass transfer effects Temperature ANSWER DOWNLOAD EXAMIANS APP
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