Which is the most suitable for the concert-ration of highly concentrated solution?

Related MCQs

• It is desired to concentrate a 20% salt solution (20 kg of salt in 100 kg of solution) to a 30% salt solution in an evaporator. Consider a feed of 300 kg/min at 30°C. The boiling point of the solution is 110°C, the latent heat of vaporisation is 2100 kJ/kg and the specific heat of the solution is 4 kJ/kg.K. The rate at which the heat has to be supplied in (kJ/min) to the evaporator is
• Boiling point elevation for a strong and concentrated solution is found by Duhring's rule, which states that at the same pressure, the boiling point of a solution is a linear function of the __________ of pure water.
• Open pan evaporators are preferred to be used, when the solution to be concentrated is
• A dilute aqueous solution is to be concentrated in an evaporator system. High pressure steam is available. Multiple effect evaporator system is employed, because
• For concentrating an aqueous solution of a material like anhydrous Na2SO4, whose solubility decreases with rise in temperature, the most suitable evaporator is a __________ evaporator.
• In case of a super-cooled solution, which is on the verge of crystallisation, the free energy of the solution as compared to that of the solid is
• Heat sensitive materials can be concentrated in an evaporator employing
• Fruit juice (a heat sensitive material) can be concentrated in a __________ evaporator.
• Black liquor generated during paper manufacture is concentrated in a
• Viscous & heat sensitive liquids are concentrated in __________ evaporators.