Chemical Reaction Engineering If the rate of a chemical reaction becomes slower at a given temperature, then the Free energy of activation is lower Free energy of activation is higher Entropy changes Initial concentration of the reactants remains constant Free energy of activation is lower Free energy of activation is higher Entropy changes Initial concentration of the reactants remains constant 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. Stirred tank Tubular flow Batch Fixed bed Stirred tank Tubular flow Batch Fixed bed 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 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 Use CSTR with a high conversion, when a > b Use high pressure and eliminate inerts, when a > b ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In which of the following gaseous phase reversible reactions, the product yield can not be increased by the application of high pressure? 2SO₂ + O₂ ⇋ 2SO₃ PCl3 + Cl₂ ⇋ PCl5 N₂ + O₂ ⇋ 2NO N + 3H₂ ⇋ 2NH₃ 2SO₂ + O₂ ⇋ 2SO₃ PCl3 + Cl₂ ⇋ PCl5 N₂ + O₂ ⇋ 2NO N + 3H₂ ⇋ 2NH₃ 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 (1/2)n.CA (CA)1/n (CA)1/2n (CA)n (1/2)n.CA (CA)1/n (CA)1/2n ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For series reaction, the relative yield Both A and C hold good Decreases with increasing conversion Is always greater for plug-flow reactor than for the single CSTR of the same volume Statement in A is wrong Both A and C hold good Decreases with increasing conversion Is always greater for plug-flow reactor than for the single CSTR of the same volume Statement in A is wrong ANSWER DOWNLOAD EXAMIANS APP
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