Chemical Reaction Engineering For identical flow rate and feed composition, X plug flow reactors (PER) in series with a total volume V gives the same conversion as single PFR of volume V/X CSTR of volume V PFR of volume V CSTR of volume V/X PFR of volume V/X CSTR of volume V PFR of volume V CSTR of volume V/X ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering If helium is introduced in a reactor containing O₂, SO₂ and SO₃ at equilibrium, so that total pressure increases while volume and temperature remains constant. In this case the dissociation of SO₃ (as per Le Chatlier principle) Increases Changes unpredictably Remains unaltered Decreases Increases Changes unpredictably Remains unaltered Decreases ANSWER DOWNLOAD EXAMIANS APP
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. 256 512 612 112 256 512 612 112 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Pick the WRONG design guideline for a reactor in which the reactions, A → R (desired) and A → S (undesired) are to take place. The ratio of the reaction rates is rR/rS = (k₁/k₂).Csub>Aa-b Use high pressure and eliminate inerts, when a > b Use batch reactor or plug flow reactor, when a > b Avoid recycle, when a > b Use CSTR with a high conversion, when a > b Use high pressure and eliminate inerts, when a > b Use batch reactor or plug flow reactor, when a > b Avoid recycle, when a > b Use CSTR with a high conversion, when a > b ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following is not endothermic in nature? Combustion of sulphur Gasification of carbon Thermal cracking of fuel oil Steam reforming of naphtha Combustion of sulphur Gasification of carbon Thermal cracking of fuel oil Steam reforming of naphtha ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering When all the limiting reactant is consumed in the reaction, the operational yield __________ the relative yield. Can be either greater or smaller than (depends on the type of reaction) Is greater than Is smaller than Equals Can be either greater or smaller than (depends on the type of reaction) Is greater than Is smaller than Equals ANSWER DOWNLOAD EXAMIANS APP
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