Chemical Reaction Engineering Holding time for flow reactors is __________ the space time, for constant fluid density Equal to Double None of these Triple Equal to Double None of these Triple ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following curves shows the effect of temperature on the extent of gas-solid adsorption at a given pressure? Langmuir adsorption isotherm None of these Freundlich adsorption isotherm Adsorption isobar Langmuir adsorption isotherm None of these Freundlich adsorption isotherm Adsorption isobar ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following is not a dimension-less group used in catalysis ? (where, D = dispersion co-efficient, cm² /sec.D1 = diffusion co-efficient; cm²/sec L = length of the reactor, cm t = time, sec, v = volumetric flow rate, cm³/sec . V = volume, cm³.) Reduced time (vt/V) Reactor dispersion number (D/vL) Thiele modulus (L√(k/D1) None of these Reduced time (vt/V) Reactor dispersion number (D/vL) Thiele modulus (L√(k/D1) None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A pollutant P degrades according to first order kinetics. An aqueous stream containing P at 2 kmole/m³ and volumetric flow rate 1m³ /h requires a mixed flow reactor of volume V to bring down the pollutant level to 0.5 kmole/m³ . The inlet concentration of the pollutant is now doubled and the volumetric flow rate is tripled. If the pollutant level is to be brought down to the same level of 0.5 kmole/m³ , the volume of the mixed flow reactor should be increased by a factor of 7 3 44015 6 7 3 44015 6 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The reaction A → B is conducted in an isothermal batch reactor. If the conversion of A increases linearly with holding time, then the order of the reaction is 0 2 1.5 1 0 2 1.5 1 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For a tubular reactor with space time 'τ' and residence time 'θ', the following statement holds good. τ and θ are always equal τ = θ , when the fluid density changes in the reactor τ = θ , for an isothermic tubular reactor in which the density of the process fluid is constant τ = θ , for a non-isothermal reactor τ and θ are always equal τ = θ , when the fluid density changes in the reactor τ = θ , for an isothermic tubular reactor in which the density of the process fluid is constant τ = θ , for a non-isothermal reactor ANSWER DOWNLOAD EXAMIANS APP
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