Chemical Reaction Engineering If a solid-gas non-catalytic reaction occurs at very high temperature, the rate controlling step is the __________ diffusion. Pore Film None of these Ash layer Pore Film None of these Ash layer ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A chemical reaction occurs when the energy of the reacting molecules is __________ the activation energy of the reaction. Equal to or more than More than Equal to Less than Equal to or more than More than Equal to Less than ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For the same residence time, which one will give the maximum conversion? Single tubular flow reactor (v = 5 litres) Single stirred tank (v = 5 litres) Two stirred tank (each of 2.5 litres) in series Stirred tank followed by tubular flow reactor (each of 2.5 litres) Single tubular flow reactor (v = 5 litres) Single stirred tank (v = 5 litres) Two stirred tank (each of 2.5 litres) in series Stirred tank followed by tubular flow reactor (each of 2.5 litres) ANSWER DOWNLOAD EXAMIANS APP
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 0.33 Data insufficient, can't be predicted 0.5 1 0.33 Data insufficient, can't be predicted 0.5 1 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Time required for 50% decomposition of a liquid in an isothermal batch reactor following first order kinetics is 2 minutes. The time required for 75% decomposition will be about __________ minutes. 6 4 3 8 6 4 3 8 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In autocatalytic reactions, Catalysts have very high selectivity No catalyst is used One of the products acts as a catalyst One of the reactants acts as a catalyst Catalysts have very high selectivity No catalyst is used One of the products acts as a catalyst One of the reactants acts as a catalyst ANSWER DOWNLOAD EXAMIANS APP
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