Chemical Reaction Engineering The ratio of moles of a reactant converted into the desired product to that converted into unwanted product is called None of these Relative yield Selectivity Operational yield None of these Relative yield Selectivity Operational yield ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The reaction rate almost gets doubled for 10°C rise in temperature. This is due to the fact that the Collision frequency increases Fraction of molecules having threshold energy increases Increased temperature reduces the activation energy Value of threshold energy decreases Collision frequency increases Fraction of molecules having threshold energy increases Increased temperature reduces the activation energy Value of threshold energy decreases ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The reason why a catalyst increases the rate of reaction is that, it Decreases the energy barrier for reaction Increases the activation energy Decreases the molecular collision diameter None of these Decreases the energy barrier for reaction Increases the activation energy Decreases the molecular collision diameter None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A batch reactor suffers from following disadvantage. High labour and handling cost All of these High shutdown time requirement for emptying, cleaning and refilling Poor product quality control High labour and handling cost All of these High shutdown time requirement for emptying, cleaning and refilling Poor product quality control ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In a reaction, the threshold energy is equal to (where, A = activation energy N = normal energy of reactants) N A A-N A+N N A A-N A+N ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering BET apparatus is used to determine the Pore diameter Porosity of the catalyst bed Pore size distribution Specific surface of a porous catalyst Pore diameter Porosity of the catalyst bed Pore size distribution Specific surface of a porous catalyst ANSWER DOWNLOAD EXAMIANS APP
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