‘Duhring’s plot’ is of use in_________________?
‘Duhring’s plot’ is of use in_________________?
A. Extractive distillation
B. Evaporation
C. Leaching
D. Absorption
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Boiling point of a solution according to Duhring’s rule is a linear function of the _____________ of water?A. Boiling point (at the same pressure)
B. Viscosity
C. Density
D. Thermal conductivityAmong liquids, water has a comparatively high value of thermal conductivity, due to its__________________?
Among liquids, water has a comparatively high value of thermal conductivity, due to its__________________?A. Low density
B. High viscosity
C. Partial ionisation
D. Dense structureThe driving potential for the crystal growth during crystallisation is the _______________ of the solution?
The driving potential for the crystal growth during crystallisation is the _______________ of the solution?A. Concentration
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C. Super-saturation
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Which of the following situations can be approximated to a steady state heat transfer system ?A. A red hot steel slab (having outside surface temperature as 1300°C) exposed to the
atmospheric air at 35°C
B. 10 kg of dry saturated steam at 8 kgf/cm2 flowing through a short length of stainless steel pipe
exposed to atmospheric air at 35°C
C. Boiling brine kept in open vessel when the bottom surface temperature of the vessel is
maintained constant at 180°C
D. A sub-cooled refrigerant liquid at 8°C flowing at the rate of 6 Kg/minute through a copper
pipe exposed to atmospheric air at 35°CMultiple effect evaporation is generally recommended, when the______________________?
Multiple effect evaporation is generally recommended, when the______________________?A. Large scale evaporation of liquor is needed
B. Corrosive liquids are to be concentrated
C. Fuel is cheaply available
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Baffles in the shell side of a shell and tube heat exchanger ?A. Increase the cross-section of the shell side liquid
B. Force the liquid to flow parallel to the bank
C. Increase the shell side heat transfer co-efficient
D. Decrease the shell side heat transfer co-efficient