Chemical Reaction Engineering Specific rate constant for a second order reaction Is independent of temperature Both B and C Varies with temperature Depends on the nature of the reactants Is independent of temperature Both B and C Varies with temperature Depends on the nature of the reactants 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? 2 2.5 1.6 2.24 2 2.5 1.6 2.24 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The value of 'n' for a chemical reaction A → B, whose reaction rate is → CAn, will be __________ if the rate of the reaction increases by a factor of 8, when the concentration of is doubled. 2 1 3 2 1 3 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Mean residence time is equal to the space time, when The temperature, pressure and the density of reaction mixture remains constant throughout the reactor The feed rate is measured at temperature and pressure in the reactor All of these There is no change in number of moles in gaseous reaction The temperature, pressure and the density of reaction mixture remains constant throughout the reactor The feed rate is measured at temperature and pressure in the reactor All of these There is no change in number of moles in gaseous reaction ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In case of staged packed bed reactors carrying out exothermic reaction, use Cold shot operations for a dilute solution requiring large preheating to bring the stream upto the reaction temperature Plug flow for dilute liquid requiring no large preheating of feed All of these High recycle for pure gas Cold shot operations for a dilute solution requiring large preheating to bring the stream upto the reaction temperature Plug flow for dilute liquid requiring no large preheating of feed All of these High recycle for pure gas ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering If the time required for half change is inversely proportional to the square of initial concentration and the velocity depends on the units in which the concentration term is expressed, then the order of reaction is 3 1 2 0 3 1 2 0 ANSWER DOWNLOAD EXAMIANS APP
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