Chemical Reaction Engineering For all positive reaction orders for a particular duty, Mixed reactor is always larger than the plug-flow reactor Ratio of the volume of the mixed reactor to that of the plug-flow reactor decreases with order Density variation during reaction affects design Reactor size is independent of the type of flow Mixed reactor is always larger than the plug-flow reactor Ratio of the volume of the mixed reactor to that of the plug-flow reactor decreases with order Density variation during reaction affects design Reactor size is independent of the type of flow 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) None of these Thiele modulus (L√(k/D1) Reactor dispersion number (D/vL) Reduced time (vt/V) None of these Thiele modulus (L√(k/D1) Reactor dispersion number (D/vL) ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering If the pore diffusion controls in a catalytic reaction, the apparent activation energy Ea is equal to (E + ED) where ED is activation due to diffusion The intrinsic activation energy E ED/2 (E + ED)/2 (E + ED) where ED is activation due to diffusion The intrinsic activation energy E ED/2 (E + ED)/2 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In the converter of the contact process for the manufacture of H₂SO₄ the equilibrium conversion of SO₂ __________ (i) __________ with increase in temperature and __________ (ii) __________ with increase in the mole ratio of SO₂ to air. (i) increases (ii) increases (i) decreases (ii) increases (i) decreases (ii) decreases (i) increases (ii) decreases (i) increases (ii) increases (i) decreases (ii) increases (i) decreases (ii) decreases (i) increases (ii) decreases ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following factors control the design of a fluid-solid reactor? Reaction kinetics for single particle, All of these Size distribution of solids beingtreated Flow patterns of solids and fluid in the reactor Reaction kinetics for single particle, All of these Size distribution of solids beingtreated Flow patterns of solids and fluid in the reactor ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Rate constant 'k' and absolute temperature 'T' are related by collision theory (for bimolecular) as k ∝ exp(-E/RT) k ∝ T k ∝ T1.5 k ∝ √T k ∝ exp(-E/RT) k ∝ T k ∝ T1.5 k ∝ √T ANSWER DOWNLOAD EXAMIANS APP
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