Chemical Reaction Engineering A chemical reaction, A → 3B, is conducted in a constant pressure vessel. Starting with pure A, the volume of the reaction mixture increases 3 times in 6 minutes. The fractional conversion is 0.5 0.33 Data insufficient, can't be predicted 1 0.5 0.33 Data insufficient, can't be predicted 1 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 τ/0.693 0.693τ 2τ 0.5τ τ/0.693 0.693τ 2τ 0.5τ ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The performance of a cascade of CSTR's can be improved by adding More CSTR's in series More CSTR's in parallel A P.F. reactor in series A P.F. reactor in parallel More CSTR's in series More CSTR's in parallel A P.F. reactor in series A P.F. reactor in parallel ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A batch reactor suffers from following disadvantage. All of these Poor product quality control High shutdown time requirement for emptying, cleaning and refilling High labour and handling cost All of these Poor product quality control High shutdown time requirement for emptying, cleaning and refilling High labour and handling cost ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering If the time required to complete a definite fraction of reaction varies inversely as the concentration of the reactants, then the order of reaction is 3 1 2 3 1 2 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 Diffusion within the pellet None of these External mass transfer Reaction Diffusion within the pellet None of these External mass transfer Reaction ANSWER DOWNLOAD EXAMIANS APP
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