UNIT$-$III

$5.$ For solid catalyzed reactions describing pore diffusion resistance combined with a first order reaction in a single cylindrical pore, derive an expression for thiele modulus and effectiveness factor. How would the volume of thiole modulus vary for different orders of reaction?

$6.$ Write short notes on :

$($a$)$ Film theory.

$($b$)$ Enhancement factor.

$($c$)$ Reactor design for.gas Iiquid$-$system.

$)=(15$

UNIT$-$IV

$7.$ What do you mean by fluidized bed reactor? Also give design equation for fluidized bed reactor. Explain in detail.

$8.$ Describe the following :

$($a$)$ The working and design equations for non$-$isothermal and non$-$adiabatic conditions encountered in fixed bed reactors.

$($b$)$ Discuss the two phase fluidized bed model used for solid catalyzed reactions.

$)=(15$