If f = moles of vapour present per mole of feed, then the slope of feed line is (Mcabe-Thiele method)
A. $$\frac{{1 - {\text{f}}}}{{\text{f}}}$$
B. $$ - \frac{{{\text{f}} - 1}}{{\text{f}}}$$
C. $$ - \frac{1}{{\text{f}}}$$
D. $$ - \frac{{\text{f}}}{{1 - {\text{f}}}}$$
Answer: Option C
This Question Belongs to Chemical Engineering >> Mass Transfer
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