= Vo

سل ا
0

0 ட்ப ಚ

Correct Answer:- Option-A
Question93:-The power required for a propeller mixer of diameter 25 cm for a liquid of specific gravity 1.4 and viscosity 2.5
cp for operating at a Reynolds number of 20,000 and power number is equal to 32 is given by

000ھ

B:-81.6 W

C:-816 W

D:-8.16 W

Correct Answer:- Option-D

Question94:-The Henry's law constant for oxygen in water at 298 Kis “4.4 0 10~(4)" bar. For a partial pressure of oxygen
at 0.25 bar and at 298 K, the solubility of oxygen in water is

A:-'5.68 500 10~(-5)" moles/mole “H_(2)0
68 moles/mole 11_(2)0
C:-'5.68 0 107(-6)` moles/mole *H_{2)0"
0:-` 5.68 50¢ 10~(-7)" moles/mole 0 (30
Correct Answer:- Option-C
Question95:-A stream of nitrogen flowing at the rate of 7000 kg/h and a stream of hydrogen flowing at the rate of 1500 kg/h

mix adiabatically in a steady flow process. If the gases are ideal and are at the same temperature and pressure, the rate of
entropy increases in K)/hK is

A:--4675.3
B:-4675.3
C:-4675.3 ¢ 107 (3)"
D:-None of the above
Correct Answer:- Option-A
Question96:-The Lewis number is defined as
கட 59)"
ந: 9
சங லையா
D:-"Np_{r).N_(se}~(1/2)
Correct Answer:- Option-C
Question97:-If the feed is all saturated vapour, then q is given by
‏٥ے -ھ‎
8:-4 = 1
Cg<1
0:-प१>1
Correct Answer:- Option-A
Question98:-A packed tower is designed to recover 98% *CO_(2)" from a gas mixture containing 10% ` 0 (2)` and 90% air
using water. Y = 14 X can be used for equilibrium conditions where Y is kg “CO_(2)"/kg dry air and X is kg *CO_(2)" kg water.
The water to gas rate is kept 30% more than the minimum value. The height of the tower if HTU is 1 metre will be
&:-10.3 7
B:-11.3 m
@:-12.3 7
0:-14.3 7
Correct Answer:- Option-B
Question99:-For any particular duty and for all positive reaction orders
A:-Mixed reactor is always smaller than a plug flow reactor
B:-Mixed reactor and plug flow reactor are of same volume
C:-Mixed reactor is always larger than the plug flow reactor
D:-None of the above
Correct Answer:- Option-C

(24७ = (१/0
Question100:-For a gaseous reaction A + 28 + ‏م‎
‏0ھ‎

B:-0.889

`¢ (8) = 20, " the conversion of B is