Chemical Reaction Engineering The enzyme which can catalyse the conversion of glucose to ethyl alcohol is Maltase Zymase Invertase Diastase Maltase Zymase Invertase Diastase 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 Batch Fixed bed Stirred tank Tubular flow Batch Fixed bed Stirred tank ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A first order gaseous phase reaction is catalysed by a non-porous solid. The kinetic rate constant and the external mass transfer co-efficients are k and kg respectively. The effective rate constant (keff) is given by keff = k + kg keff = (kkg)1/2 keff = (k+ kg)/2 1/keff = 1/k + 1/kg keff = k + kg keff = (kkg)1/2 keff = (k+ kg)/2 1/keff = 1/k + 1/kg ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For a packed bed reactor; the presence of a long tail in the residence time distribution curve is an indication of Ideal plug flow Dead zone Chanelling Bypass Ideal plug flow Dead zone Chanelling Bypass ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The reaction rate almost gets doubled for 10°C rise in temperature. This is due to the fact that the Fraction of molecules having threshold energy increases Collision frequency increases Value of threshold energy decreases Increased temperature reduces the activation energy Fraction of molecules having threshold energy increases Collision frequency increases Value of threshold energy decreases Increased temperature reduces the activation energy 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 reduced and pressure is increased Temperature is increased and pressure is reduced Temperature is increased Pressure is reduced Temperature is reduced and pressure is increased Temperature is increased and pressure is reduced Temperature is increased Pressure is reduced ANSWER DOWNLOAD EXAMIANS APP
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