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06000CH305122001

PART ‏تا‎
‎Answer any two full questions, each carries 15 marks.
Derive the rate equation for the irreversible second order reaction
2A > Products using integral method
Explain the method of half-lives to find the kinetics of elementary reactions.
For the reaction A > Products, the following data were obtained at 25 °C.
Time

(minutes)

Concentration
0.860 0.740 0.635 0.546 0.405
of A (mol/l)

Find the order, rate constant and half-life of the reaction.

Write short notes on stirred contained solid reactor and stirred through transport
reactor.

Derive the performance equation of isothermal batch reactor.

In an isothermal batch reactor, for a first order reaction 75% conversion of
liquid reactant ‘A’ is achieved in 30 minutes. Find the space time and space
velocity necessary to effect this conversion in a mixed flow reactor and in a plug
flow reactor.

For the series reaction A > R > S, derive expressions for the concentration of
compounds A, R, and S vary with time. Find out the time at which the
maximum concentration of R occurs.

In an isothermal batch reactor, a liquid phase reaction with stoichiometry A >R
is achieved. Find the time needed to lower the concentration of ‘A’ from 8 mol/l

to 4 mol/l. The rate versus concentration data are as follows:

Ca, mol/l | 1 | 2 4 6 7 | 9 | 12
-ra, mol/(1. min) 0.06 0.1 0.25 1 2 | 1 | 0.5
PART ©

Answer any two full questions, each carries 20 marks.

Derive the performance equation for recycle reactor and the expression for
optimum recycle ratio.

The elementary liquid phase reaction A + B > Products, is conducted in a setup
consisting of a mixed flow reactor, into which two reactant solutions are

introduced, followed by a plug flow reactor. The component ‘B’ is used in

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