2. A solution of 500 kg of Na2SO4 in 2500 kg water is cooled from 333...

2. A solution of 500 kg of Na2SO4 in 2500 kg water is cooled from 333 K to 283 K in an
agitated mild steel vessel of mass 750 kg. At 283 K, the solubility of the anhydrous salt
is 8.9 kg/100 kg water and the stable crystalline phase is Na2SO4.10H2O. At 291 K,
the heat of solution is −78.5 MJ/kmol and the specific heat capacities of the solution
and mild steel are 3.6 and 0.5 kJ/kg deg K respectively. If, during cooling, 2 per cent
of the water initially present is lost by evaporation, estimate the heat which must be
removed. (use both methods)

Solutions

Expert Solution

I have taken some formula and value from standard textbook which will help you to understand the process.You can go through any standard textbook of crystallisation for getting the derivation of the formula.

Amanda K answered 4 weeks ago

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