Chemical Reaction Engineering For a packed bed reactor; the presence of a long tail in the residence time distribution curve is an indication of Dead zone Ideal plug flow Bypass Chanelling Dead zone Ideal plug flow Bypass Chanelling ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Photo-chemical reactions occur in presence of Solid catalysts Monochromatic radiation only Sunlight Darkness Solid catalysts Monochromatic radiation only Sunlight Darkness ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The following gas phase reactions are carried out isothermally in a CSTR.A → 2R ; r₁ = K₁pA ;K₁ = 20mole/(sec.m³ bar)A → 3S ; r₂ = K₂ pA ;K₂ = 40mole/ (sec.m³ .bar)What is the maximum possible value of FR(mole/sec.) ? 43864 43832 2 43833 43864 43832 2 43833 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A CSTR is to be designed in which an exothermic liquid phase first order reaction of the type, A → R, is taking place. The reactor is to be provided with a jacket in which coolant is flowing. Following data is given: CA0= 5 kmole/m³ ; XA = 0.5; Feed temperature = reactor temperature = 40°C. Rate constant at 40°C = 1 min⁻¹ ; (ΔH) = - 40kJ/mole; ρ = 1000kg/m³ CP = 4 J/gm.°C ; q = 10⁻³ m³/min (ρ and CP are same for the reactant and product streams). The amount of heat to be removed is 4kW 2/3 kW 5/3 kW 1kW 4kW 2/3 kW 5/3 kW 1kW ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Molecularity of a reaction Both B and C May not be equal to the order of reaction Is always equal to the overall order of reaction Can Both B and C May not be equal to the order of reaction Is always equal to the overall order of reaction Can ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The reactions of high molecularity are rare, because Of requirement of very large concentration for such reactions Of low probability of many body collisions Many body collisions are not favoured energetically Of very large activation energy of many bodies Of requirement of very large concentration for such reactions Of low probability of many body collisions Many body collisions are not favoured energetically Of very large activation energy of many bodies ANSWER DOWNLOAD EXAMIANS APP
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