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TITLE Our own calculation of Rainwater evaporation SOLUTION 1 Precipitation of rainfall in the Mediterranean

      units           mg/L
      pH              4.5   # estimated
      temp            25.0
      Ca              .384
      Mg              .043
      Na              .141
      K               .036
      Cl              .956
      C(4)            .1      CO2(g)  -3.5
      S(6)            1.3
      N(-3)           .208
      N(5)            .237

EQUILIBRIUM_PHASES 1 Equilibrate with Minerals and gas

      CO2(g)          -1.5 # write the partial pressure log(CO2)
      Calcite         0.0  # this is the saturation index at equ.

SAVE solution 2 SELECTED_OUTPUT

1. file ex4-evp.txt
2. temperature
3. pH

-molalities H+ OH- Ca+2 CO2 HCO3- CO3-2

1. saturation_indices Calcite Gypsum Siderite
2. gases CO2(g) N2(g)

END

TITLE Evaporate water USE Solution 2 REACTION 1 evaporation

  H2O     -1.0
      # All Calculations of the program are for 1 kg of water
      # 1 kg of water has 55 moles. Why: 1 mol H20 = 18 g
      # 1000 / 18 = 55.555555
      # Remove 90 % of the inital water: evaporate 90 % of rainfall
      # 0.9 * 1000 / 18 = 50
      50.0  51.0 52.0 53.0 54.0 55.0 moles

SAVE SOLUTION 3 END

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