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 0.693τ 2τ τ/0.693 0.5τ 0.693τ 2τ τ/0.693 0.5τ ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Rate constant 'k' and absolute temperature 'T' are related by collision theory (for bimolecular) as k ∝ √T k ∝ T k ∝ T1.5 k ∝ exp(-E/RT) k ∝ √T k ∝ T k ∝ T1.5 k ∝ exp(-E/RT) ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A first order reaction requires two unequal sized CSTR. Which of the following gives higher yield ? Smaller reactor followed by larger one Large reactor followed by smaller one Either of the arrangement A or B will give the same yield Data insufficient, can Smaller reactor followed by larger one Large reactor followed by smaller one Either of the arrangement A or B will give the same yield Data insufficient, can ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For the liquid phase zero order irreversible reaction A → B, the conversion of A in a CSTR is found to be 0.3 at a space velocity of 0.1min⁻¹ . What will be the conversion for a PFR with a space velocity of 0.2 min⁻¹? Assume that all the other operating conditions are the same for CSTR and PFR. 0.9 0.3 0.15 0.6 0.9 0.3 0.15 0.6 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Cold shot cooling is only practical when the feed temperature is __________ than the reaction temperature. Much higher Higher Much lower Lower Much higher Higher Much lower Lower ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Oil is hydrogenated using nickel catalyst in a __________ reactor. Batch Fluidised bed Fixed bed Slurry Batch Fluidised bed Fixed bed Slurry ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS