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					Program WS: Binary VLE from Wong-Sandler Mixing Rule
This program can be used in two ways. as shown in the tutorial that follows. If measured isothermal VLE data are
available, the program can be used to calculate VLE at the measured liquid mole fractions with user-provided model
parameters and to compare the calculated bubble pressures and vapor mole fractions with the experimental ones.
Alternatively, the program can be used to optimize parameters of a selected model by fitting parameters to measured
liquid mole fraction versus bubble pressure data. Parameter optimization is done using a simplex algorithm. In this
mode the program reads previously stored data or accepts new data entered from the keyboard. The input data structure
is identical to that described in the program VDW, and the details concerning the input data can be found there.
During parameter optimization, as a requirement of the simplex method, an initial guess must be provided for each
parameter. The initial guesses may be positive or negative numbers; they are in reduced form and thus a value of
between zero and one is a useful choice in many cases. However, depending on the non ideality of the mixture, an
initial guess may need to be significantly different from unity in order for the program to converge. If convergence
cannot be achieved with a set of initial guesses, the user should try again with different initial guesses
If no experimental VLE data are available, the program can be used for predictions using internally generated liquid
mole fractions of species I in the range from 0 to I at intervals of 0.1. In this case the user must provide all model
parameters and temperature in addition to pure component critical temperature and pressure, acentric factor, and the Kl
parameter of the PRSV equation of state for each compound.
The results from the program can be sent to a printer, to a disk file, or both. This choice is made following the
commands that appear on the screen upon completion of the calculations.

Use of the WS Model to Correlate Data

     Change the directory containing WS.EXE (e.g., A> or C>,).
     Start the program by typing WS at the DOS prompt. Press RETURN (or ENTER).
     A message introducing the program appears on the screen. Press RETURN to continue.
      The following appears on the screen:

WS: BINARY VLE CALCULATIONS WITH THE WONG-SANDLER MIXING RULE
YOU CAN USE THIS PROGRAM FOR VLE CALCULATION IN TWO WAYS.
MODE (1): IF NO T-P-x-y DATA TO COMPARE RESULTS WITH ARE AVAILABLE,
YOU MUST SUPPLY CRITICAL TEMPERATURE, CRITICAL PRESSURE, ACENTRIC FACTOR,
PRSV KAPPA-l PARAMETER FOR EACH COMPOUND, AND A TEMPERATURE
ALONG WITH A SET OF PREVIOUSLY SELECTED MODEL PARAMETERS.
IN THIS MODE THE PROGRAM WILL RETURN ISOTHERMAL x-y-P PREDICTIONS
AT THE TEMPERATURE ENTERED IN THE COMPOSITION RANGE Xl=O TO 1
AT INTERVALS OF 0.1.
MODE (2): IF YOU HAVE ISOTHERMAL x-y-P DATA, YOU CAN ENTER
THESE DATAFOLLOWING COMMANDS THAT WILL APPEAR ON THE SCREEN
(OR USE PREVIOUSLY ENTERED DATA) TO FIT MODEL PARAMETERS TO THE VLE DATA.
ALTERNATIVELY, YOU CAN CALCULATE VLE WITH PREVIOUSLY SELECTED PARAMETERS
AND COMPARE THE RESULTS WITH THE VLE DATA.

     At
      "ENTER 1 FOR MODE (1), 2 FOR MODE (2), OR 0 TO TERMINATE THE PROGRAM" type 2
      and press RETURN.
      (This selection allows the entry of new VLE data from the keyboard or use of previously entered data.)

     At
      "DO YOU WANT TO DO A PARAMETER FIT (ENTER A) OR CALCULATION WITH PREVIOUSLY
      FITTED PARAMETERS {ENTER B)?" type A and press RETURN.
   At
    "ENTER NUMBER OF PARAMETERS TO BE FIT (2 OR 3)
    (2): TWO PARAMETERS OF EXCESS FREE ENERGY MODEL ARE FIT
    (3): IN ADDITION K12 PARAMETER OF THE WS MODEL IS FIT
    (other parameters such as alpha of the NRTL model, or
    UNIQUAC pure component parameters must be supplied by user.):"
    type 3 and press RETURN.
    (With this command, all three parameters in the WS mixing rule, the two excess free-energy model parameters,
    and the binary interaction parameter, kij, are optimized.)
   At
    "DO YOU WANT TO USE AN EXISTING DATA FILE (Y/N)?"type y(or Y) and press RETURN.
   At
    "INPUT NAME OF THE EXISTING DATA FILE (for example a:pe373.dat):"
    type a:pe373.dat.
   At
    "SELECT AN EXCESS FREE ENERGY MODEL:
     O=EXIT l=UNIQUAC 2=VAN LAAR 3=WILSON 4=NRTL" type 2 and press RETURN.
    (This results in selection of the van Laar model for the excess-energy term in the WS mixing rule.)
   At
    "PARAMETERS P12 AND P21 ARE REDUCED AS DESCRIBED BELOW.
    AIJ ARE PARAMETERS AS TABULATED IN THE DECHEMA TABLES.
    FOR UNIQUAC, PIJ=EXP(-AIJ/RT).
    FOR VAN LAAR, PIJ=AIJ.
    FOR WILSON, PIJ={VLPJ/VLPI)*EXP(-AIJ/RT). FOR NRTL, PIJ=AIJ/RT.
    WITH THIS REDUCTION, IT IS POSSIBLE TO USE INITIAL GUESSES IN
    THE RANGE OF ZERO TO ONE.
    INPUT INITIAL GUESSES FOR P12, P21:" type 0.1, 0.1 and press RETURN
   At
    "INPUT INITIAL GUESS FOR THE WS MIXING-RULE PARAMETER K12:"
    type 0.3 and press RETURN.
    (At this stage the program is run to optimize the two parameters of the NRTL model and the binary interaction
    parameter, kij. Intermediate results will be continuously displayed on the screen in the form of an error bar. When
    the optimization is complete, a message summarizing the results appears on the screen for inspection. Press
    RETURN to continue.)
    The following results appear on the screen:



    WS: THE WONG-SANDLER MIXING RULE FOR BINARY VLE CALCULATIONS
    PENTANE ETHANOL 372.7 K
    EXCESS ENERGY MODEL = VAN LAAR
    K12= .3084
    P12(=DIMENSIONLESS KAPPA12 OF VAN LAAR) 1.2172
    P21(=DIMENSIONLESS KAPPA21 OF VAN LAAR) 2.9709 TEMPERATURE in K: 372.70
    PHASE VOLUMES ARE IN CC/MOL, PRESSURE IS IN UNITS OF THE DATA.
            X-EXP    P-EXP      P-CAL     Y-EXP     Y-CAL      VL-CAL      VV-CAL

            .0000 220.000      220.608 .00000 .00011             69.10     13461.1

            .0830 422.600      392.650 .49100 .46706             70.22      7335.6

            .1710 537.400      517.326 .62900 .61874             72.21      5396.2

            .3030 618.800      618.967 .69000 .70420             77.00      4376.9

            .4410 654.300      660.413 .72400 .73733             84.65      4045.8

            .6260 678.100      678.399 .74700 .75796             99.44      3911.1

            .7360 684.300      683.632 .76800 .77313            110.22      3869.2

            .8390 682.600      682.601 .80300 .80117            120.53      3864.0

            .9370 658.100      657.648 .86000 .86940            128.94      4006.8

            .9999 591.000      591.174 .99990 .99964            132.65      4470.6

    Press return to continue

    Press RETURN to continue.
   At
    "DO YOU WANT A PRINT-OUT (Y/N)?" type y (or Y) and press RETURN.
    (With this command the results, shown above, are sent to the printer.)
   At
    "DO YOU WANT TO SAVE THE RESULTS TO AN OUTPUT FILE (Y/N)?"
    type y (or Y) and press RETURN.

   At
    "INPUT A NAME FOR THE OUTPUT FILE": type A:TEMP5.0UT and press RETURN.
    (With this command the results shown above are saved on the disk in drive A under the name TEMP5.0UT in
    ASCII code.)
   At
    "DO YOU WANT TO DO ANOTHER VLE CALCULATION (Y/N)?" type n
    (or N) and press RETURN

Use of the WS Model to Correlate Data

   Change to the directory containing WS.EXE (e.g., A> or C>,).
   Start the program by typing WS at the DOS prompt. Press RETURN (or ENTER).
   The message introducing the program appears on the screen. Press RETURN to continue.
    The following appears on the screen:

WS: BINARY VLE CALCULATIONS WITH THE WONG-SANDLER MIXING RULE
YOU CAN USE THIS PROGRAM FOR VLE CALCULATION IN TWO WAYS.
MODE (1): IF NO T-P-x-y DATA TO COMPARE RESULTS WITH ARE AVAILABLE
FACTOR, PRSV KAPPA-l PARAMETER FOR EACH COMPOUND, AND A TEMPERATURE
ALONG WITH A SET OF PREVIOUSLY SELECTED MODEL PARAMETERS.
IN THIS MODE THE PROGRAM WILL RETURN ISOTHERMAL x-y-P PREDICTIONS
AT THE TEMPERATURE ENTERED IN THE COMPOSITION RANGE Xl=O TO 1
AT INTERVALS OF 0.1.
MODE (2): IF YOU HAVE ISOTHERMAL x-y-P DATA, YOU CAN ENTER THESE DATA
FOLLOWING COMMANDS THAT WILL APPEAR ON THE SCREEN
(OR USE PREVIOUSLY ENTERED DATA) TO FIT MODEL PARAMETERS TO THE VLE DATA.
ALTERNATIVELY, YOU CAN CALCULATE VLE WITH PREVIOUSLY SELECTED PARAMETERS
AND COMPARE THE RESULTS WITH THE VLE DATA.

   At
     "ENTER 1 FOR MODE (1), 2 FOR MODE (2), OR 0 TO TERMINATE THE PROGRAM"
      type 2 and press RETURN.
     (This selection allows the entry of new VLE data from the keyboard or use of previously entered data.)
   At
    "DO YOU WANT TO DO A PARAMETER FIT (ENTER A) OR CALCULATION WITH PREVIOUSLY
    FITTED PARAMETERS {ENTER B)?" type A and press RETURN.
   At
    "ENTER NUMBER OF PARAMETERS TO BE FIT (2 OR 3)
    (2): TWO PARAMETERS OF EXCESS FREE ENERGY MODEL ARE FIT
    (3): IN ADDITION K12 PARAMETER OF THE WS MODEL IS FIT
    (other parameters such as alpha of the NRTL model, or
    UNIQUAC pure component parameters must be supplied by user.):"
    Type 2 and press RETURN.
    (With this command, the excess free-energy parameters in the WS mixing rule are optimized.
    The initial value of the binary interaction parameter kij, is used in computations.)
   At
    "DO YOU WANT TO USE AN EXISTING DATA FILE (Y/N)?"type n
    (or N) and press RETURN.
   At
    "PROVIDE THE FOLLOWING INPUT INFORMATION INPUT NEW DATA FILE NAME:"
    type temp6.DAT and press RETURN.
   At
    "INPUT A TITLE FOR THE NEW DATA FILE:" type methanol-water at373 K
    and press RETURN.
   At
    "CRITICAL PARAMETERS:                    TC=CRITICAL TEMPERATURE, K
                                             PC=CRITICAL PRESSURE, BAR
                                             W=ACENTRIC FACTOR
                                             KAP=THE PRSV EOS KAPPA-1 PARAMETER
      INPUT TC1, PC1, W1, KAP1:" type 512.58, 80.9579, 0.56533, -0.16816,
      and press RETURN.
    (These are parameters of methanol for the PRSV EOS )
   At
    "INPUT TC2, PC2, W2, KAP2:" type 647.286, 220.8975, 0.3438, -0.06635,
    and press RETURN.
    (These are parameters of water for the PRSV EOS )
   At
    "INPUT NUMBER OF DATA POINTS:" type 3 and press RETURN.
   At
    "INPUT TEMPERATURE T in K:" type 373.15 and press RETURN.
   At
    "INPUT FACTOR TO CONVERT EXPERIMENTAL PRESSURE DATA TO BAR BY DIVISION
    (e.g. if original data in rom Hg, type 750 if original data in psia, type
    14.5 etc.):" type 750 and press RETURN.
   At
    "INPUT EXPERIMENTAL DATA IN LIQUID MOLE FRACTION (X1EXP) OF SPECIES 1,
    VAPOR MOLE FRACTION (Y1EXP) OF SPECIES 1, AND BUBBLE POINT PRESSURE (PEXP)
    (three in a row, separated by commas)
    INPUT X1EXP, YlEXP, PEXP:" type 0.035, 0.191, 931.
   At
    "INPUT X1EXP, Y1EXP, PEXP:" type 0.281, 0.619, 1535.96.
   At
    "INPUT X1EXP, Y1EXP, PEXP:" type 0.826, 0.911, 2337.76.
     (When the number of items of data, specified by NP, here three, is entered, the program writes the data
     to a file under the name temp06.dat as specified above and continues. This data file becomes an
     existing data file and can be used when this program or other EOS programs are run again.)
   At
    "SELECT AN EXCESS FREE ENERGY MODEL:
    O=EXIT l=UNIQUAC 2=VAN LAAR 3=WILSON 4=NRTL" type2 andpress RETURN.
     (This results in selection of the van Laar model for the excess energy term in the
     WS mixing rule.)
   At
    "PARAMETERS P12 AND P21 ARE REDUCED AS DESCRIBED BELOW.
    AIJ ARE PARAMETERS AS TABULATED IN THE DECHEMA TABLES.
    FOR UNIQUAC, PIJ=EXP(-AIJ/RT).
    FOR VAN LAAR, PIJ=AIJ.
    FOR WILSON, PIJ=(VLPJ/VLPI)*EXP(-AIJ/RT).
    FOR NRTL, PIJ=AIJ/RT.
    WITH THIS REDUCTION, IT IS POSSIBLE TO USE INITIAL GUESSES
    IN THE RANGE OF ZERO TO ONE.
    INITIAL VALUES RECOMMENDED FOR P12 AND P21 ARE 0.1.
    INPUT INITAL GUESSES FOR P12, P21:" type 0.1, 0.1 and press RETURN.
   At
    "INPUT THE WS MIXING-RULE PARAMETER K12:" type 0.2 and press RETURN.
    (At this stage the program optimizes the two parameters of the van Laar model. Intermediate
    results will continuously be displayed on the screen in the form of an error bar. When the
    optimization is completed, a message summarizing the results appears on the screen.
    Press RETURN to continue.)
    The following results appear on the screen:

    WS: THE WONG-SANDLER MIXING RULE FOR BINARY VLE CALCULATIONS
    methanol - water at 373 K
    EXCESS ENERGY MODEL = VAN LAAR
    K12= .2001
    P12(=DIMENSIONLESS KAPPA12 OF VAN LAAR) .6358
    P21(=DIMENSIONLESS KAPPA21 OF VAN LAAR) .1095
    TEMPERATURE in K: 373.15
    PHASE VOLUMES ARE IN CC/MOL, PRESSURE IS IN UNITS OF THE DATA.
                   X-EXP      P-EXP        P-CAL    Y-EXP     Y-CAL        VL-CAL    VV-CAL

                   .0350    931.000 931. 024        .19100 .20817            22.90   24717.6

                   .2810    1535.960 1535.929 .61900 .61062                  26.45   14820.6

                   .8260    2337.760 2375.031 .91100 .92047                  43.50     9391.6

      Press return to continue
      Press RETURN to continue.
     At
      "DO YOU WANT A PRINT-OUT (Y/N)?" type y (or Y) and press RETURN.
      (With this command the results, shown above, are sent to the printer.)
     At
      "DO YOU WANT TO SAVE THE RESULTS TO AN OUTPUT FILE (Y/N)?"
      type n (or N) and press RETURN.
     At
      "DO YOU WANT TO DO ANOTHER VLE CALCULATION (Y/N)?" type n
      (or N) and press RETURN

Use of the WS Mixing Rule in the Predictive Mode

     Change to the directory containing WS.EXE (e.g., A> or C>,).
     Start the program by typing WS at the DOS prompt. Press RETURN (or ENTER).
     The message introducing the program appears on the screen. Press RETURN to continue.
      The following appears on the screen:

WS: BINARY VLE CALCULATIONS WITH THE WONG-SANDLER MIXING RULE
YOU CAN USE THIS PROGRAM FOR VLE CALCULATION IN TWO WAYS.
MODE (1): IF NO T-P-x-y DATA TO COMPARE RESULTS WITH ARE AVAILABLE,
YOU MUST SUPPLY CRITICAL TEMPERATURE, CRITICAL PRESSURE, ACENTRIC FACTOR,
PRSV KAPPA-l PARAMETER FOR EACH COMPOUND, AND A TEMPERATURE
ALONG WITH A SET OF PREVIOUSLY SELECTED MODEL PARAMETERS.
IN THIS MODE THE PROGRAM WILL RETURN ISOTHERMAL x-y-P PREDICTIONS
AT THE TEMPERATURE ENTERED IN THE COMPOSITION RANGE Xl=O TO 1
AT INTERVALS OF 0.1.
MODE (2): IF YOU HAVE ISOTHERMAL x-y-P DATA, YOU CAN ENTER THESE DATA
FOLLOWING COMMANDS THAT WILL APPEAR ON THE SCREEN
(OR USE PREVIOUSLY ENTERED DATA) TO FIT MODEL PARAMETERS TO THE VLE DATA.
ALTERNATIVELY, YOU CAN CALCULATE VLE
WITH PREVIOUSLY SELECTED PARAMETERS AND COMPARE THE RESULTS WITH THE VLE DATA.
    At
     "ENTER 1 FOR MODE (1), 2 FOR MODE (2), OR 0 TO TERMINATE THE PROGRAM"
      type 1 and press RETURN.
     (This example serves to demonstrate the predictive mode of the program WS, which is selected with the
     preceding entry. This mode is used in the absence ofVLE data, and therefore no data are entered to,
     or can be accessed from the disk in this mode. Instead, the user provides the critical temperature, critical
     presssure. acentric factor, and the PRSV k1 parameter for each pure component, selects an excess free-
     energy model; provides model parameters and a temperature. The program will return isothermal x-y-P
    predictions at the temperature entered, in the composition range x, = 0 to 1. at intervals of 0.1.)
   At
    "YOU MAY ENTER A TITLE (25 CHARACTERS MAX.) FOR THE MIXTURE TO BE
    PREDICTED (OR YOU MAY PRESS RETURN TO SKIP THE TITLE):" enter 'meoh-water binary
    system' and press RETURN.
   At
    "TC=CRITICAL TEMPERATURE, K
      PC=CRITICAL PRESSURE, BAR
      W=ACENTRIC FACTOR
      KAP=THE PRSV EOS KAPPA-1 PARAMETER
      INPUT TC1, PC1, W1, KAP1:" type 512.58, 80.9579, 0.56533, -0.16816,
     and press RETURN.
   At
    "INPUT TC2, PC2, W2, KAP2:" type 647.286, 220.8975, 0.3438, -0.06635,
     and press RETURN.
   At
    "INPUT TEMPERATURE in K:" type 373.15 and press RETURN
   At
    "INPUT FACTOR TO CHOOSE UNITS OF REPORTED PRESSURE. DEFAULT IS BAR,
    TYPE 1 IF YOU WANT PRESSURE IN BAR. (type 750 if you want pressure
    In mm Hg, etc.):" enter 750 and press RETURN.
   At
    "SELECT AN EXCESS FREE ENERGY MODEL:
    O=EXIT l=UNIQUAC 2=VAN LAAR 3=WILSON 4=NRTL" type2 and press RETURN.
    (This results in selection of the van Laar model for the excess energy term in the WS mixing rule.)
   At
    "INPUT REDUCED PARAMETERS P12 AND P21.
    BELOW AIJ ARE PARAMETERS AS TABULATED IN THE DECHEMA TABLES.
    FOR UNIQUAC, PIJ=EXP(-AIJ/RT).
    FOR VAN LAAR, PIJ=AIJ.
    FOR WILSON, PIJ=(VLPJ/VLPI)*EXP(-AIJ/RT).
    FOR NRTL, PIJ=AIJ/RT.
    WITH THIS REDUCTION, IT IS POSSIBLE TO USE INITIAL GUESSES IN THE
    RANGE OF ZERO TO ONE.
    INPUT PARAMETERS P12, P21:" type 0.7727, 03088 and press RETURN.
   At
    "INPUT THE WS MIXING-RULE PARAMETER K12:" type 0.1 and press RETURN.
    (At this stage the program runs, and a message summarizing results appears on the screen.
    No average absolute deviation in bubble pressure is reported in that message because measured
    bubble pressure information is not available. Press RETURN to continue.)
    The following results appear on the screen:

    WS: THE WONG-SANDLER MIXING RULE FOR BINARY VLE CALCULATIONS
    meoh-water binary system

    EXCESS ENERGY MODEL = VAN LAAR
    K12= .1000
    P12(=DIMENSIONLESS KAPPA12 OF VAN LAAR) .7727
    P21(=DIMENSIONLESS KAPPA21 OF VAN LAAR) .3088
    TEMPERATURE in K: 373.15
    ?HASE VOLUMES ARE IN CC/MOL.
    FACTOR YOU ENTERED TO CONVERT PRESSURE FROM BAR IS: 750.00

       X-EXP    P-EXP     P-CAL Y-EXP    Y-CAL    VL-CAL   VV-CAL

       .0000    -       760.051    -    .00008    22.51    30349.3

       .1000    -       1132.200   -    .38471    24.29    20242.6

       .2000    -       1369.104   -    .53202    26.25    16663.5

       .3000    -       1555.544   -    .62420    28.43    14610.4

       .4000    -       1720.619   -    .69525    30.86    13161.7

       .5000    -       1876.244   -    .75594    33.59    12027.8

       .6000    -       2027.984   -    .81065    36.63    11088.2

       .7000    -       2178.725   -    .86148    40.04    10283.0

       .8000    -       2330.114   -    .90957    43.86    9577.9

       .9000    -       2483.203   -    .95559    48.14    8951.0

       1.0000   -       2638.782   -    1.00000   52.94    8387.3

    Press return to continue

    Press RETURN to continue.
   At
    "DO YOU WANT A PRINT-OUT (Y/N)?" type n (or N) and press RETURN. .
   At
    "DO YOU WANT TO SAVE THE RESULTS TO AN OUTPUT FILE (Y/N)?"
    Type y (or Y) and press RETURN
   At
    “INPUT A NAME FOR THE OUTPUT FILE:” type A:TEMP8.OUT and
    press RETURN
   At
    “DO YOU WANT TO DO A VLE CALCULAION AT ANOTHER TEMPERATURE (Y/N)?”
    type y (or Y) and press RETURN.
   At
    "INPUT TEMPERATURE T in K:" enter 393.15 and press RETURN.
   At
    "SELECT AN EXCESS FREE ENERGY MODEL:
    O=EXIT l=UNIQUAC 2=VAN LAAR 3=WILSON 4=NRTL" type 2 and press RETURN.
    (This command results in the selection of the van Laar model to be used as the
     excess free-energy term in the WS mixing rule.)

   At
    "INPUT REDUCED PARAMETERS P12 AND P21.
    BELOW AIJ ARE PARAMETERS AS TABULATED IN THE DECHEMA TABLES.
    FOR UNIQUAC, PIJ=EXP(-AIJ/RT).
    FOR VAN LAAR, PIJ=AIJ.
    FOR WILSON, PIJ=(VLPJ/VLPI)*EXP(-AIJ/RT).
    FOR NRTL, PIJ=AIJ/RT.
    WITH THIS REDUCTION, IT IS POSSIBLE TO USE INITIAL GUESSES IN THE
       RANGE OF ZERO TO ONE.
    INPUT PARAMETERS P12, P21:" type 0.7727, 03088 and press RETURN.
   At
    "INPUT THE WS MIXING-RULE PARAMETER K12:" type 0.1 and press RETURN.
    (At this stage the program runs, and the message summarizing results appears again
     on the screen. Press RETURN to continue.)
    The following results appear on the screen:

WS: THE WONG-SANDLER MIXING RULE FOR BINARY VLE CALCULATIONS
     meoh-water binary system

    EXCESS ENERGY MODEL = VAN LAAR
    K12= .1000
    P12(=DIMENSIONLESS KAPPA12 OF VAN LAAR) .7727
    P21(=DIMENSIONLESS KAPPA21 OF VAN LAAR) .3088

    TEMPERATURE in K: 393.15
    PHASE VOLUMES ARE IN CC/MOL.
    WS: THE WONG-SANDLER MIXING RULE FOR BINARY VLE CALCULATIONS
    meoh-water binary system

    EXCESS ENERGY MODEL = VAN LAAR
    K12= .1000
    P12(=DIMENSIONLESS KAPPA12 OF VAN LAAR) .7727
    P21(=DIMENSIONLESS KAPPA21 OF VAN LAAR) .3088

    TEMPERATURE in K: 373.15
    ?HASE VOLUMES ARE IN CC/MOL.
    FACTOR YOU ENTERED TO CONVERT PRESSURE FROM BAR IS: 750.00


           X-EXP   P-EXP     P-CAL     Y-EXP   Y-CAL    VL-CAL   VV -CAL

           .0000    -      1488.881      -     .00007    22.95   16221.6

           .1000    -      2145.238      -     .36245    24.78   11147.8

           .2000    -      2564.061      -     .50879    26.81    9261.0

           .3000    -      2892.341      -     .60225    29.07    8161.2

           .4000    -      3181.187      -     .67519    31.60    7379.1

           .5000    -      3451. 765     -     .73814    34.45    6763.4

           .6000    -      3714.104      -     .79549    37.65    6250.5

           .7000    -      3973.501      -     .84938    41.25    5808.5

           .8000    -      4232.937      -     .90089    45.32    5429.2
            .9000     -     4494.906         -      .95102    49.92      5070.1

          1.0000      -     4760.618         -    1. 00001    55.12      4753.9


    press return to continue

    Press RETURN to continue.
   At
    "DO YOU WANT A PRINT-OUT (Y/N)?" type n (or N) and press RETURN. .
   At
     "DO YOU WANT TO SAVE THE RESULTS TO AN OUTPUT FILE (Y/N)?"
    type y (or Y) and press RETURN
   At
    “INPUT A NAME FOR THE OUTPUT FILE:” type A:TEMP8.OUT andpress RETURN
    (With this entry the results above are appended to the file TEMP8.OUT, whichalready contains
    the predictions for this binary system at 373.15 K).
   At
    “DO YOU WANT TO DO A VLE CALCULAION AT ANOTHER TEMPERATURE (Y/N)?”
    type n (or N) and press RETURN.

				
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