2. ex 12.4) Heat of formation of LiCl (1mole) in 12mole of H2O at 25℃
hydration

4. ex 12-5) 1.25kg of superheated steam at 132℃ , 1atm feed at 25℃
evaporator
2 kg of
15% LiCl
0.75kg 40% LiCl
solution at 132℃
Q=?
2 kg feed at 25℃
0.3kg LiCl and 1.70kg H2O
ⓐ separation
0.30kg LiCl
at 25℃
1.70kg H2O
at 25 ℃
ⓓ heating
1.25kg water at 25℃
to 132℃ steam at 1atm
ⓑ mixing of
0.30kg LiCl with
0.45kg H2O at 25 ℃
1.25kg of superheated steam at 132 ℃, 1atm
0.75kg 40% LiCl at 25℃
ⓒHeating to 132℃
0.75kg 40% LiCl at 132℃

6. Enthalpy / concentration (Hx) diagram
Enthalpy of
pure water
Enthalpy of
pure H2SO4
Endothermic : ∆H >0 , Q <0
Exothermic : ∆H <0 , Q >0 H H

7. binary solution a
binary solution b
binary solution
adiabatic
mixing

8. Solubility limit of
NaOH in H2O