For a first order isothermal chemical reaction in a porous catalyst, the effectiveness factor is 0.3. The effectiveness factor will increase if the____________________?

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If a solid-gas non-catalytic reaction occurs at very high temperature, the rate controlling step is the ________________ diffusion?

A. Film B. Ash layer C. Pore D. None of these...

Pick out the wrong statement ?

A. For the same conversion, the holding time required in a batch reactor, is always equal to the space time required in a PFR B. Two mixed reactors of unequal size are available for producing a specified product, formed by a homogenous second order reaction. To achieve maximum production rate, the smaller reactor should be … Pick out the wrong statement ?Read More...

For identical flow rate, feed composition and for elementary first order reactions, ‘N’ equal sized mixed reactors in series with a total volume ‘V’ gives the same conversion as a single plug flow reactor of volume ‘V’ for constant density systems. This is true, when the value of ‘N’ is ___________________?

A. 1 B. > 1 C. ∞ D. ≥ 1...

A chemical reaction occurs, when the energy of the reacting molecules is ________________ the activation energy of reaction?

A. Less than B. Equal to C. More than D. Equal to or more than...

The preferred reacting system for oxidation of o-xylene to phthalic anhydride is _____________________?

A. Jacketed liquid phase CSTR B. Jacketed steam heated multitubular reactor C. Multitubular reactor with cooling D. Multistage multitubular reactor with interstage cooling...