Chemical Reaction Engineering Transition state theory gives the rate constant as K α √T . e-E/RT K α T . e-E/RT K α e-E/RT K α eE/RT K α √T . e-E/RT K α T . e-E/RT K α e-E/RT K α eE/RT ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering From among the following, choose one which is not an exothermic process. Oxidation of sulphur Methanol synthesis Catalytic cracking Ammonia synthesis Oxidation of sulphur Methanol synthesis Catalytic cracking Ammonia synthesis ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Brunaur, Emmet and Teller (BET) equation is used to determine the specific surface area of a porous particle but not the pore volume & the porosity of the catalyst bed. Which of the following postulates is not used to derive BET equation? Langmuir There is no dynamic equilibrium between successive layer The adsorbed layer may be polymolecular in thickness and the heat of adsorption in each layer (except the first one) is involved in each of the evaporation process None of these Langmuir There is no dynamic equilibrium between successive layer The adsorbed layer may be polymolecular in thickness and the heat of adsorption in each layer (except the first one) is involved in each of the evaporation process None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The ratio of volume of mixed reactor to the volume of P.F.R. (for identical flow rate, feed composition and conversion) for zero order reaction is 1 ∞ > 1 1 ∞ > 1 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A batch adiabatic reactor at an initial temperature of 373°K is being used for the reaction, A → B. Assume the heat of reaction is - 1kJ/mole at 373°K and heat capacity of both A and B to be constant and equal to 50J/mole.K. The temperature rise after a conversion of 0.5 will be 20°C 5°C 100°C 10°C 20°C 5°C 100°C 10°C ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A pulse tracer is introduced in an ideal CSTR (with a mean residence time ι) at time, t = 0. The time taken for the exit concentration of the tracer to reach half of its initial value will be 2τ 0.693τ τ/0.693 0.5τ 2τ 0.693τ τ/0.693 0.5τ ANSWER DOWNLOAD EXAMIANS APP
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