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A single-effect evaporator is used to concentrate 60000 kg h-1 of a 40 wt % NaOH solution which is fed to the evaporator at 40°C. The concentrated liquid is a 55 wt % NaOH solution. Saturated steam at 3 atm is available for heating. The vapour space in the evaporator is at a pressure of 10 kPa. The overall heat transfer coefficient is 2000 W m-2 K-1 Determine:
a) the amount of vapour produced.
b) the area required for the evaporator. Include clearly values of relevant properties. c) the economy.
Which one pair of atoms or ions will have same configuration: (1) F + ans Ne (2) Li + He - (3) C l - and Ar (4) Na and K Ans: Cl - an
How many ion H2- does have The H2- ion having three electrons. This can be conceived as the combination of a hydrogen atom with a hydride ion (H-). By the aufbau principle, two
Characteristics of tautomerism (a) Tautomerism (cationotropy) is caused by the oscillation of hydrogen atom between two polyvalent atoms present in the molecule. The modificati
Q. What is the basic structure of Alkynes? Ans. Alcohols have the general chemical formula of ROH. The R stands for the rest of the molecule and is usually an alkyl group
phenol is more acidic thyan eythanol
in castner kelnar process sodium metal extract at cathode and calcium also why they do not mix if they extract at same chamber?
what are uses of slag in blast furnace
conclusion for assignment on topic applications of colloids
Hi, my name is Teesta and I need your help with this question: You are asked to make 1 Liter of 5M Sodium Chloride (NaCl). How many grams of NaCl are needed?
Three-center bonding Example of where the 2c bonding picture is not present is in diborane B2H6. The terminal B-H bonds can be defined in simple 2c terms, but the number of
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