The Knudsen diffusivity is proportional to where T = absolute temperature
A.T
B.T 3/2
C.T 1/2
D.T2
A.T
B.T 3/2
C.T 1/2
D.T2
A.forms no azeotrope with the original substances
B.forms a minimum boiling azeotrope with one or both of the feed components
C.should be of very high viscosity to provide high tray efficiencies
D.should have very high latent heat of vaporization
A.entrainment
B.evaporation losses
C.blowdown
D.all of the above
A.McCabe ? Thiele method
B.Ponchon ? Savarit method
C.Both McCabe ? Thiele and Ponchon ? Savarit methods are equally good.
A.zero
B.one
C.infinity
D.one except at x = 0 or 1
A.activity coefficient
B.turbdown ratio
C.relative volatility
D.fugacity
A.maximum possible
B.optimum
C.minimum
D.infinite
A.< 1
B.1
C.>1
D.>>1
A.1
B.0.24
C.2.4
D.3
A.the vapour and liquid leaving streams are in equilibrium
B.the vapour and liquid entering streams are in equilibrium
C.the vapour leaving stream is in equilibrium with the liquid entering stream
D.the vapour entering stream is in equilibrium with the liquid leaving stream