Process Equipment and Plant Design
The optimum size ratio for two mixed reactors in series depends on the kinetics of the reaction and the conversion level. For reaction orders more than one, the

Smaller reactor should come first
None of these
Equal sized reactors are the best
Larger reactor should come first

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Process Equipment and Plant Design
Pick out the wrong statement about the design of seive plate column and the bubble cap column.

Weir length for a bubble cap plate is the same as that for the seive plate
The downcomer design and the residence time in the downcomer is almost same for seive plate and bubble cap columns
Weir height for a bubble cap plate column is the same as that for a seive plate column
Weir height in case of a bubble cap plate ranges from 50 to 150 mm and is higher than the seive plate

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Process Equipment and Plant Design
In a bag filter, the pressure drop increases directly as the

None of these
Density of the gas, but is independent of the viscosity of the gas
Density of the gas and inversely as viscosity of the gas
Viscosity of the gas and inversely as density of the gas

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Process Equipment and Plant Design
Ponchon Savarit method is based on the use of enthalpy concentration diagram, which contains the bubble point curve (saturated liquid curve), dew point curve (saturated vapour curve) and equilibrium tie lines. As compared to McCabe-Thiele's method, this method

Is more accurate in finding the number of equilibrium stages
Accounts for the enthalpy changes in the process
All of these
Facilitates direct calculation of heat load on reboiler & condenser from, the diagram used in this method

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