Chemical Reaction Engineering The minimum energy required to allow a chemical reaction to proceed is termed as the 'threshold energy '. Chemical reaction with low activation energy are Highly temperature sensitive Always irreversible Insensitive to temperature changes Mostly irreversible Highly temperature sensitive Always irreversible Insensitive to temperature changes Mostly irreversible ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following is not a chemical step in a fluid solid catalytic reaction? Adsorption None of these Desorption Surface chemical reaction Adsorption None of these Desorption Surface chemical reaction ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The catalytic converter for conversion of SO₂ to SO₃ by contact process should have a feed with SO₂ content between 7-10% 20-25% 12-15% 2-5% 7-10% 20-25% 12-15% 2-5% ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering An irreversible first order reaction is being carried out in a CSTR and PFR of same volume. The liquid flow rates are same. The relative conversion will Depend on the temperature Be same in both cases Be more in PFR than in CSTR Be more in CSTR than in PFR Depend on the temperature Be same in both cases Be more in PFR than in CSTR Be more in CSTR than in PFR ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following factors control the deactivation of a porous catalyst pellet? All of these Form of surface attack by poison Decay reactions Pore diffusion All of these Form of surface attack by poison Decay reactions Pore diffusion ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering If the pore diffusion controls in a catalytic reaction, the apparent activation energy Ea is equal to (E + ED) where ED is activation due to diffusion ED/2 The intrinsic activation energy E (E + ED)/2 (E + ED) where ED is activation due to diffusion ED/2 The intrinsic activation energy E (E + ED)/2 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS