To understand the principle of laboratory distillation
To separate a binary mixture with different boiling points through fractional distillation
Practice the application of distillation devices
Measure the efficiency of distillation column
Calculate the minimum ideal plates
Superheated vapor feed(q<0)
Saturated vapor feed(q=0)
Partially vaporized feed(q=0.5)
the principle of distillation and separate a mixture of two miscible liquids(liquids that mix in all proportions) with different boiling points.
A technique of separating mixtures based on
differences in their volatilities in a boiling
Batch or Continuous Distillation(Feeding method)
feed water is heated by steam in tubes
MED purifies water through the use of heat, to “boil” off and re-capture the pure water over a number of cycles or “effects”, leaving the unwanted solids behind
Each stage essentially reuses the energy from the previous stage.
majority of water must be pumped from its source or directed into pipes or holding tanks
to remove large debri
Section 24.1 Electric Current
14. The current is the amount of charge passing a given point in the wire, per unit time, so in one second,
The number of electrons in this amount of charge is
15. INTERPRET This problem is about the number of charges involved in setting up an electric current.
DEVELOP For a steady current, the amount of charge crossing a given area
boiled ginseng extract for 2 weeks than control (P＜0.05). The accumulation of ginseng saponin was observed when the feeding period was increased. Based on the experiments, feeding the boiled ginseng extract affects red blood cell stimulation and i