please help answer these two questions
9:14
چال
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1. (50 marks)
A binary mixture of benzene and toluene are to be separated in a flash tank. At
what temperature should the tank be operated to get the highest purity toluene
in the liquid phase (maximizing X+)? The pressure in the flash tank is 800 mm Hg.
The units for Antoine’s equation are mm Hg and °C for pressure and
temperature, respectively.
XB Psatb + xy Psatt = P
log10 (Psab) = 6.905 –
1211
T + 221
log,0 (Psar) = 6.953
1344
T + 219
2. (50 marks)
Enzymatic reactions are used extensively to characterize biologically mediated
reactions in environmental engineering. Proposed rate expressions for an enzymatic
reaction are given below where (S) is the substrate concentration and vg is the initial
rate of reaction. Which formula best fits the experimental data? (Here k and K are
fitting parameters.)
k[S] k[S] K[S]
un = k[S] vo =
K + [S] K + [512 K + [SH
vo
10=
vo. 106 M/s 17.69
[S].M 1
24.425
5
24.491
10
24.5
50
24.5
100
