Chemical Reaction Engineering A back mix reactor is Suitable for gas phase reactions Same as plug flow reactor (PFR) Ideal at very low conversion Same as ideal stirred tank reactor Suitable for gas phase reactions Same as plug flow reactor (PFR) Ideal at very low conversion Same as ideal stirred tank reactor 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) E + ΔHA - ΔHR ΔHA + ΔHR E + ΔHA E E + ΔHA - ΔHR ΔHA + ΔHR E + ΔHA E ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering According to Arhenious equation of temperature dependency of rate constant for an elementary reaction K ∝ T e-E/RT K ∝ e-E/RT None of these K ∝ √T K ∝ T e-E/RT K ∝ e-E/RT None of these K ∝ √T ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The fractional volume change between no conversion and complete conversion, for the isothermal gas phase reaction, 2A → R, is 1 -0.5 0.5 1.5 1 -0.5 0.5 1.5 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For nearly isothermal operation involving large reaction time in a liquid-phase reaction, the most suitable reactor is a __________ reactor. Tubular flow Fixed bed Stirred tank Batch Tubular flow Fixed bed Stirred tank Batch ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In case of a/an __________ chemical reaction, conversion increases with the rise in temperature. Reversible exothermic Irreversible endothermic Irreversible exothermic Reversible endothermic Reversible exothermic Irreversible endothermic Irreversible exothermic Reversible endothermic ANSWER DOWNLOAD EXAMIANS APP
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