Chemical Reaction Engineering In a reaction, the threshold energy is equal to (where, A = activation energy N = normal energy of reactants) A-N A+N N A A-N A+N N A ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering If Thiele modulus is __________ , then the pore diffusion resistance in a catalyst may be considered as negligible. ∞ < 0.5 0 > 0.5 ∞ < 0.5 0 > 0.5 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Reactions with high activation energy are Always reversible Always irreversible Temperature insensitive Very temperature sensitive Always reversible Always irreversible Temperature insensitive Very temperature sensitive ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The rate constant of a chemical reaction increases by 100 times when the temperature is increased from 400 °K to 500 °K. Assuming transition state theory is valid, the value of E/R is 8987°K 9210°K 8621°K 8764°K 8987°K 9210°K 8621°K 8764°K ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering If pore diffusion is the controlling step in a solid catalysed reaction, the catalyst None of these Internal surface area is utilised efficiently Porosity is very important Porosity is of less importance None of these Internal surface area is utilised efficiently Porosity is very important Porosity is of less importance ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The 'E' curve for a non-ideal reactor defines the fraction of fluid having age between t and t + dt Averaged over the inlet and outlet In the reactor At the inlet At the outlet Averaged over the inlet and outlet In the reactor At the inlet At the outlet ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS