Chemical Reaction Engineering The rate constant of a chemical reaction increases by increasing the Temperature Reactant's concentration None of these Pressure Temperature Reactant's concentration None of these Pressure ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering With an increase in pressure in gaseous phase chemical reactions, the fractional conversion __________ when the number of moles decreases. Decreases Remains unaffected Unpredictable from the data Increases Decreases Remains unaffected Unpredictable from the data Increases ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering What is the unit of the rate constant in a chemical reaction in which 10% of the reactant decomposes in one hour, 20% in two hours, 30% in three hours and so on? Litre/second Litre/mole Moles/litre.second Litre/mole.second Litre/second Litre/mole Moles/litre.second Litre/mole.second ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering At a given value of E/R (ratio of activation energy and gas constant), the ratio of the rate constants at 500°K and 400°K is 2, if Arrhenious law is used. What will be this ratio, if transition state theory is used with the same value of E/R? 1.6 2 2.24 2.5 1.6 2 2.24 2.5 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The reaction A → B is conducted in an adiabatic plug flow reactor (PFR). Pure A at a concentration of 2 kmol/m³ is fed to the reactor at the rate of 0.01 m³ /s and at a temperature of 500 K. If the exit conversion is 20%, then the exit temperature (in k)is (Data: Heat of reaction at 298 K = - 50000 kJ/ kmole of A reacted Heat capacities CPA = CPB = 100kJ/kmole. K (may be assumed to be independent of temperature)) 500 400 600 1000 500 400 600 1000 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Most important characteristics of gas-liquid reactors are the None of these Specific inter-facial area Both A and B Liquid hold-up None of these Specific inter-facial area Both A and B Liquid hold-up ANSWER DOWNLOAD EXAMIANS APP
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