*/*_If f = moles of vapour present per mole of feed, then the slope of – McqOptions

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1.	/_If f = moles of vapour present per mole of feed, then the slope of feed line is (Mcabe-Thiele method)?
A.	(1 - f)/f
B.	- (f - 1)/f
C.	- 1/f
D.	- f/(1 - f)
Answer» D. - f/(1 - f)

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