Example Values
Example values of activity coefficients of sodium chloride in aqueous solution are given in the table. In an ideal solution, these values would all be unity. The deviations tend to become larger with increasing molality and temperature, but with some exceptions.
| Molality (mol/kg) | 25 °C | 50 °C | 100 °C | 200 °C | 300 °C | 350 °C |
|---|---|---|---|---|---|---|
| 0.05 | 0.820 | 0.814 | 0.794 | 0.725 | 0.592 | 0.473 |
| 0.50 | 0.680 | 0.675 | 0.644 | 0.619 | 0.322 | 0.182 |
| 2.00 | 0.669 | 0.675 | 0.641 | 0.450 | 0.212 | 0.074 |
| 5.00 | 0.873 | 0.886 | 0.803 | 0.466 | 0.167 | 0.044 |
Read more about this topic: Activity (chemistry)
Famous quotes containing the word values:
“Tallulah [Bankhead] was the foremost naughty girl of her era but, in those days, “naughty” meant piquant, whereas values have so changed that now, in the 1970s, it generally means nauseating.”
—Anita Loos (1888–1981)
“Individually, museums are fine institutions, dedicated to the high values of preservation, education and truth; collectively, their growth in numbers points to the imaginative death of this country.”
—Robert Hewison (b. 1943)