A.remains unaffected with change in reflux ratio
B.increases with increase in reflux ration
C.decreases with increase in reflux ration
D.and the heat required in reboiler decrease with increase in reflux ratio
A.equal to one
B.less than one
C.greater than one
D.greater than zero
A.10-5 cm2/sec
B.10-5 m2/sec
C.10-5 mm2/sec
D.10-5 ft2/sec
A.heat transfer only
B.mass transfer only
C.simultaneous heat and mass transfer
D.momentum transfer only
A.the temperature of the mixture
B.the total pressure of the mixture
C.the composition of the mixture
D.all of the above
A.the temperature of the vapour phase is equal to the temperature of the liquid phase
B.the total pressure throughout the vapour phase is equal to the total pressure throughout the liquid phase
C.the tendency of each phase is exactly equal to its tendency to escape from the vapour phase to the liquid phase
D.all of the above
A.momentum diffusivity
B.thermal diffusivity
C.thermal conductivity
D.1/thermal diffusivity
A.has the same composition as the overhead product
B.is richer in less volatile component than overhead product
C.is richer in more volatile component than overhead product
A.remain constant
B.decrease
C.increase
