Chemical Reaction Engineering A space time of 3 hours for a flow reactor means that It takes three hours to dump the entire volume of the reactor with feed Conversion is cent per cent after three hours Three reactor volumes of feed can be processed every hour The time required to process one reactor volume of feed (measured at specified conditions) is 3 hours It takes three hours to dump the entire volume of the reactor with feed Conversion is cent per cent after three hours Three reactor volumes of feed can be processed every hour The time required to process one reactor volume of feed (measured at specified conditions) is 3 hours 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 2.5 2.24 1.6 2 2.5 2.24 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The equilibrium constant of chemical reaction __________ in the presence of catalyst. Can either increase or decrease (depends on the type of catalyst) Decreases Remains unaffected Increases Can either increase or decrease (depends on the type of catalyst) Decreases Remains unaffected Increases 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 All of these The feed rate is measured at temperature and pressure in the reactor 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 All of these The feed rate is measured at temperature and pressure in the reactor There is no change in number of moles in gaseous reaction ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering An endothermic aqueous phase first order irreversible reaction is carried out in an adiabatic plug flow reactor. The rate of reaction Is maximum at the exit of the reactor Goes through a maximum along the length of the reactor Goes through a minimum along the length of the reactor Is maximum at the inlet of the reactor Is maximum at the exit of the reactor Goes through a maximum along the length of the reactor Goes through a minimum along the length of the reactor Is maximum at the inlet of the reactor ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering During manufacture of H₂SO₄, the oxidation of SO₂ to SO₃ by oxygen is an en- dothermic reaction. The yield of SO₃ will be maximised, if the Temperature is increased Temperature is increased and pressure is reduced Pressure is reduced Temperature is reduced and pressure is increased Temperature is increased Temperature is increased and pressure is reduced Pressure is reduced Temperature is reduced and pressure is increased ANSWER DOWNLOAD EXAMIANS APP
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