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At what feed condition the slope of q line is...

At what feed condition the slope of q line is infinity?

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+1 vote

asked Sep 21, 2022 in Mass Transfer by Julian (37.1k points)

At what feed condition the slope of q line is infinity?

(a) Saturated vapour

(b) Saturated liquid

(c) Superheated vapour

(d) None of the mentioned

I had been asked this question in an interview for internship.

My doubt stems from Flash Vaporization Line (q-line) in chapter Distillation of Mass Transfer

mass transfer
distillation
flash vaporization line (q-line)

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1 Answer

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answered Oct 12, 2022 by Chris (39.8k points)

Correct option is (b) Saturated liquid

Best explanation: At saturated liquid the enthalpy of feed and the liquid is same so q=1 and slope = infinity.

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