Chemical Reaction Engineering The most suitable reactor for carrying out an auto-thermal reaction is a Semi-batch reactor CSTR Plug-flow reactor Batch reactor Semi-batch reactor CSTR Plug-flow reactor Batch reactor ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Cold shot cooling is only practical when the feed temperature is __________ than the reaction temperature. Lower Much higher Higher Much lower Lower Much higher Higher Much lower ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering If the rate of a chemical reaction becomes slower at a given temperature, then the Initial concentration of the reactants remains constant Free energy of activation is higher Entropy changes Free energy of activation is lower Initial concentration of the reactants remains constant Free energy of activation is higher Entropy changes Free energy of activation is lower ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The equilibrium constant of chemical reaction __________ in the presence of catalyst. Decreases Increases Remains unaffected Can either increase or decrease (depends on the type of catalyst) Decreases Increases Remains unaffected Can either increase or decrease (depends on the type of catalyst) 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 Avoid recycle, when a > b Use batch reactor or plug flow reactor, when a > b Use CSTR with a high conversion, when a > b Use high pressure and eliminate inerts, when a > b Avoid recycle, when a > b Use batch reactor or plug flow reactor, when a > b ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering During manufacture of H₂SO₄, the oxidation of SO₂ to SO₃ by oxygen is an en- dothermic reaction. The yield of SO₃ will be maximised, if the Temperature is increased and pressure is reduced Temperature is reduced and pressure is increased Temperature is increased Pressure is reduced Temperature is increased and pressure is reduced Temperature is reduced and pressure is increased Temperature is increased Pressure is reduced ANSWER DOWNLOAD EXAMIANS APP