Chemical Reaction Engineering If Thiele modulus is __________ , then the pore diffusion resistance in a catalyst may be considered as negligible. ∞ > 0.5 < 0.5 0 ∞ > 0.5 < 0.5 0 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A batch reactor suffers from following disadvantage. High labour and handling cost Poor product quality control All of these High shutdown time requirement for emptying, cleaning and refilling High labour and handling cost Poor product quality control All of these High shutdown time requirement for emptying, cleaning and refilling ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering If CA is the quantity of reactants initially present, the quantity left after 'n' half periods will be equal to (CA)n (CA)1/n (CA)1/2n (1/2)n.CA (CA)n (CA)1/n (CA)1/2n (1/2)n.CA ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For a tubular reactor with space time 'τ' and residence time 'θ', the following statement holds good. τ and θ are always equal τ = θ , for a non-isothermal reactor τ = θ , when the fluid density changes in the reactor τ = θ , for an isothermic tubular reactor in which the density of the process fluid is constant τ and θ are always equal τ = θ , for a non-isothermal reactor τ = θ , when the fluid density changes in the reactor τ = θ , for an isothermic tubular reactor in which the density of the process fluid is constant ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The exit age distribution curve E(t) for an ideal CSTR with the average residence time, τ, is given by E-t/τ 1 - (e-t/τ/T) 1 - e-t/τ E-t/τ/T E-t/τ 1 - (e-t/τ/T) 1 - e-t/τ E-t/τ/T ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For a heterogenous catalytic reaction, A + B → C, with equimole feed of A and B, the initial rate - rA0 is invariant with total pressure. The rate controlling step is Surface reaction between A in the gas phase and absorbed B Surface reaction between absorbed A and absorbed B Desorption of C Surface Kc/(1 + TS) reaction between absorbed A and B in the gas phase Surface reaction between A in the gas phase and absorbed B Surface reaction between absorbed A and absorbed B Desorption of C Surface Kc/(1 + TS) reaction between absorbed A and B in the gas phase ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS