Chemical Reaction Engineering
For all positive reaction orders for a particular duty,

Density variation during reaction affects design
Ratio of the volume of the mixed reactor to that of the plug-flow reactor decreases with order
Reactor size is independent of the type of flow
Mixed reactor is always larger than the plug-flow reactor

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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.)

None of these
Reactor dispersion number (D/vL)
Thiele modulus (L√(k/D1)
Reduced time (vt/V)

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