Chemical Reaction Engineering The rate of a chemical reaction is almost doubled for every 10°C rise in temperature. The rate will increase __________ times, if the temperature rises form 10 to 100°C. 112 512 612 256 112 512 612 256 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Rate constant for a first order reaction does not depend upon reaction time, extent of reaction and the initial concentration of reactants ; but it is a function of reaction temperature. In a chemical reaction, the time required to reduce the concentration of reactant from 100 gm moles/litre to 50 gm moles/litre is same as that required to reduce it from 2 gm moles/litre to 1 gm mole/litre in the same volume. Then the order of this reaction is 2 3 1 0 2 3 1 0 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The importance of diffusion in a catalyst are increased by All of these Small pore diameter An active surface of the catalyst Large catalyst particle size All of these Small pore diameter An active surface of the catalyst Large catalyst particle size ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A trickle bed reactor is the one, which Processes three reactants at different flow rates Has altogether three streams either entering or leaving Processes three reactants with same flow rate Employs all the three phases (i.e.. .solid, liquid and gas) Processes three reactants at different flow rates Has altogether three streams either entering or leaving Processes three reactants with same flow rate Employs all the three phases (i.e.. .solid, liquid and gas) ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following is not a chemical step in a fluid solid catalytic reaction? Desorption None of these Surface chemical reaction Adsorption Desorption None of these Surface chemical reaction Adsorption ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A pollutant P degrades according to first order kinetics. An aqueous stream containing P at 2 kmole/m³ and volumetric flow rate 1m³ /h requires a mixed flow reactor of volume V to bring down the pollutant level to 0.5 kmole/m³ . The inlet concentration of the pollutant is now doubled and the volumetric flow rate is tripled. If the pollutant level is to be brought down to the same level of 0.5 kmole/m³ , the volume of the mixed flow reactor should be increased by a factor of 3 44015 7 6 3 44015 7 6 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS