Chemical Reaction Engineering A first order reaction A → B occurs in an isothermal porous catalyst pellet of spherical shape. If the concentration of A at the centre of the pellet is much less than at the external surface, the process is limited by Diffusion within the pellet None of these Reaction External mass transfer Diffusion within the pellet None of these Reaction External mass transfer ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The most unsuitable reactor for carrying out reactions in which high reactant concentration favours high yields is PFR in series Backmix reactor Plug flow reactor Series of CSTR PFR in series Backmix reactor Plug flow reactor Series of CSTR ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The rate of a homogeneous reaction is a function of Pressure and composition only Temperature and composition only Temperature and pressure only All of these Pressure and composition only Temperature and composition only Temperature and pressure only All of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In an ideal tubular-flow reactor Mixing takes place in radial direction All of these There is no mixing in longitudinal direction There is a uniform velocity across the radius Mixing takes place in radial direction All of these There is no mixing in longitudinal direction There is a uniform velocity across the radius ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering What is the order of a chemical reaction in which doubling the initial concentration of the reactants doubles the half life time of the reaction? 1 2 Zero 3 1 2 Zero 3 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The dimensions of rate constant for reaction 3A → B are (l/gm mole)/min. Therefore the reaction order is 2 3 1 2 3 1 ANSWER DOWNLOAD EXAMIANS APP
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