Chemical Reaction Engineering In case of physical adsorption, the heat of adsorption is of the order of __________ kcal/kg.mole. 10000 100 1000 100000 10000 100 1000 100000 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The rate expression for a heterogenous catalytic reaction is given by, - rA = K.KA PA(1 + KA.PA + Kr.PR), where K is surface reaction rate constant and KA and KR are absorption equilibrium constants of A and R respectively. If KR PR >> (1 + KA PA), the apparent activation energy EA is equal to (given E is the activation energy for the reaction and ΔHR and ΔHA are the activation energies of adsorption of R and A) ΔHA + ΔHR E + ΔHA - ΔHR E E + ΔHA ΔHA + ΔHR E + ΔHA - ΔHR E E + ΔHA ANSWER DOWNLOAD EXAMIANS APP
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 __________ is the response curve for a step input signal from a reactor. None of these C-curve S-curve I-curve None of these C-curve S-curve I-curve ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Bulk diffusion in catalyst pore __________ with increase in pressure. Increases exponentially Remains unchanged Increases Decreases Increases exponentially Remains unchanged Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For the non-catalytic reaction of particles with surrounding fluid, the time needed to achieve the same fractional conversion for particles of different but unchanging sizes is proportional to the square of particle diameter, when the __________ is the controlling resistance. Chemical reaction Film diffusion Either A, B or C Diffusion through ash layer Chemical reaction Film diffusion Either A, B or C Diffusion through ash layer ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS