Chemical Reaction Engineering The effectiveness factor for large value of Thiele modulus (L√(K/D1)) of a solid catalysed first order reaction is equal to (where, L = length of the reactor, cm, D1 = diffusion co-efficient, cm²/second) ∞ L√(K/D1) 1 1/(L√(K/D1)) ∞ L√(K/D1) 1 1/(L√(K/D1)) ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The rate constant of a chemical reaction increases by increasing the None of these Reactant's concentration Temperature Pressure None of these Reactant's concentration Temperature Pressure 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)) 600 400 500 1000 600 400 500 1000 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In a reversible chemical reaction having two reactants in equilibrium, if the concentration of the reactants are doubled, then the equilibrium constant will Remain the same Be halved Become one fourth Also be doubled Remain the same Be halved Become one fourth Also be doubled ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For reactions in parallel viz A → P (desired product) and A → Q (unwanted product), if the order of the desired reaction is higher than that of the undesired reaction, a Batch reactor is preferred over a single CSTR for high yield Single CSTR is the most suitable Tubular reactor is preferred over a single CSTR for high yield Both A and B Batch reactor is preferred over a single CSTR for high yield Single CSTR is the most suitable Tubular reactor is preferred over a single CSTR for high yield Both A and B ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following is an independent variable for a batch tank reactor with uniform concentration and temperature? Time None of these Diameter of the reactor Useful volume of the tank Time None of these Diameter of the reactor Useful volume of the tank ANSWER DOWNLOAD EXAMIANS APP
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