Chemical Reaction Engineering Which of the following resistances is not involved in a gas phase catalytic (gas- solid) reaction? Ash resistance Gas film and pore surface diffusion resistances for reactants Surface phenomenon resistance Gas film and pore surface diffusion resistances for products Ash resistance Gas film and pore surface diffusion resistances for reactants Surface phenomenon resistance Gas film and pore surface diffusion resistances for products ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In an ideal mixed reactor (at steady state), the Composition throughout the reactor remains same Space time is equivalent to holding time for constant density systems Exit stream has the same composition as the fluid within the reactor All of these Composition throughout the reactor remains same Space time is equivalent to holding time for constant density systems Exit stream has the same composition as the fluid within the reactor All of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For a zero order chemical reaction, the Half life period is directly proportion to the initial concentration of the reac-tants Plot of products concentration with time is a straight line through the origin All of these Products concentration increases linerarly with time Half life period is directly proportion to the initial concentration of the reac-tants Plot of products concentration with time is a straight line through the origin All of these Products concentration increases linerarly with time ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The catalyst in a first order chemical reaction changes the Equilibrium constant Activation energy Heat of formation of the product Heat of reaction Equilibrium constant Activation energy Heat of formation of the product Heat of reaction ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A backmix reactor Is same as plug-flow reactor Employs mixing in axial direction only Is most suitable for gas phase reaction Is same as ideal stirred tank reactor Is same as plug-flow reactor Employs mixing in axial direction only Is most suitable for gas phase reaction Is same as ideal stirred tank reactor ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Pick the WRONG design guideline for a reactor in which the reactions, A → R (desired) and A → S (undesired) are to take place. The ratio of the reaction rates is rR/rS = (k₁/k₂).Csub>Aa-b Use CSTR with a high conversion, when a > b Use high pressure and eliminate inerts, when a > b Use batch reactor or plug flow reactor, when a > b Avoid recycle, when a > b Use CSTR with a high conversion, when a > b Use high pressure and eliminate inerts, when a > b Use batch reactor or plug flow reactor, when a > b Avoid recycle, when a > b ANSWER DOWNLOAD EXAMIANS APP
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