Chemical Engineering - Chemical Engineering Thermodynamics - Discussion

Discussion Forum : Chemical Engineering Thermodynamics - Section 1 (Q.No. 19)
19.
The theoretical minimum work required to separate one mole of a liquid mixture at 1 atm, containing 50 mole % each of n- heptane and n- octane into pure compounds each at 1 atm is
-2 RT ln 0.5
-RT ln 0.5
0.5 RT
2 RT
Answer: Option
Explanation:
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Discussion:
11 comments Page 2 of 2.

AVANISH VERMA said:   5 years ago
P1 = yi.P=0.5(in mixture individual press)
P2 = P=1(in pure compound)
n = 1
n1 = 0.5
n2 = 0.5
W = -n1RTln(P1/P2) - n2RTln(P1/P2).
W = RTln(0.5).


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