Chemical Reaction Engineering A liquid decomposes by irreversible first order kinetics and the half life period of this reaction is 8 minutes. The time required for 75% conversion of the liquid will be __________ minutes. 8 12 4 16 8 12 4 16 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)) 400 600 1000 500 400 600 1000 500 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For all positive reaction orders for a particular duty, Ratio of the volume of the mixed reactor to that of the plug-flow reactor decreases with order Mixed reactor is always larger than the plug-flow reactor Reactor size is independent of the type of flow Density variation during reaction affects design Ratio of the volume of the mixed reactor to that of the plug-flow reactor decreases with order Mixed reactor is always larger than the plug-flow reactor Reactor size is independent of the type of flow Density variation during reaction affects design ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For an isothermal second order aqueous phase reaction, A → B, the ratio of the time required for 90% conversion to the time required for 45% conversion is 2 22 4 11 2 22 4 11 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following is not a theory of homogeneous reaction? Collision theory and activated complex theory Radiation hypothesis None of these Chain reaction theory Collision theory and activated complex theory Radiation hypothesis None of these Chain reaction theory ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The fractional volume change between no conversion and complete conversion, for the isothermal gas phase reaction, 2A → R, is -0.5 0.5 1.5 1 -0.5 0.5 1.5 1 ANSWER DOWNLOAD EXAMIANS APP
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