Define the following terms:
[3 marks]molecularity ii) order of reaction iii) non-elementary reactions
[ marks]Explain different types of packing used in an absorption tower.
[4 marks]Write a short note on differential method and integral method of analysis of kinetic data.
[7 marks]Mention different types of solid diffusion.
[3 marks]Briefly describe the differential method of analysis of data.
[4 marks]Derive equation for material balance for single stage countercurrent leaching.
[7 marks]In an O – Ngas mixture at 1 atm pressure and 250C, the concentration of Oxygen at22 two planes 2 mm apart are 10 and 20 volume% respectively. Calculate flux of diffusion of Ofor the case where Nis non-diffusing. 2 21 D O 2 N 207 = 2.065 x 10-5 m2/s.
[ marks]Explain different types of ideal reactors.
[3 marks]Show that for a first order irreversible reaction ln (1/(1 - X )) = kt. A
[4 marks]Explain gas phase controlled and liquid phase-controlled mass transfer operations with the help of two-resistance theory of interphase mass transfer.
[7 marks]Explain with the help of a graph that how activation energy affects temperature sensitivity of reaction.
[3 marks]State Fick’s first law of diffusion and explain flux Nand J A A.
[4 marks]Discuss different types of equilibrium diagram for leaching.
[7 marks]Define rate of reactions in different useful ways.
[3 marks]Derive performance equation for an ideal batch reactor.
[4 marks]The rate constant of a reaction is measured at different temperatures is reported below. Calculate the activation energy and frequency factor for this reaction. Temperature, oC 20 25 30 35 Rate constant, k, min-1 1.5 x 10-3 2.67 x 10-3 4.64 x 10-3 7.93 x 10-3
[7 marks]Explain concept of effective diffusivity for multicomponent mixtures.
[3 marks]Define Molecular and eddy diffusion with examples.
[4 marks]For a given liquid flow rate, give step wise procedure to calculate minimum liquid to gas ratio for absorbers.
[7 marks]Write about estimation of diffusivity of liquids.
[3 marks]Explain criteria of solvent selection for gas absorption.
[4 marks]Explain classification of mass transfer operations with examples of each.
[7 marks]Define Ftype and k type mass transfer coefficients.
[3 marks]State common principles of equilibrium in case of interphase mass transfer.
[4 marks]Which are different theories explaining the meaning of mass transfer coefficients? Explain Film theory in detail.
[7 marks]