Chemical Reaction Engineering A chemical reaction occurs, when the energy of the reacting molecules is __________ the activation energy of reaction. Equal to or more than More than Less than Equal to Equal to or more than More than Less than Equal to ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The space time is equivalent to the holding time in a steady state mixed reactor for Gas reactions with changing no. of moles Non-isothermal gas reaction Constant fluid density systems Variable fluid density systems Gas reactions with changing no. of moles Non-isothermal gas reaction Constant fluid density systems Variable fluid density systems ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The rate of a gas phase reaction is given by K . CA . CB. If the volume of the reaction vessel is reduced to l/4th of its initial volume, then the reaction rate compared to the original rate will be __________ times. 4 8 2 16 4 8 2 16 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. Increases Remains unaffected Unpredictable from the data Decreases Increases Remains unaffected Unpredictable from the data Decreases ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The unit of frequency factor in Arhenious equation is Same as that of rate constant Dimensionless Same as that of activation energy None of these Same as that of rate constant Dimensionless Same as that of activation energy None of these 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 1000 600 400 500 1000 600 400 ANSWER DOWNLOAD EXAMIANS APP
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