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:
“During our twenties...we act toward the new adulthood the way sociologists tell us new waves of immigrants acted on becoming Americans: we adopt the host culture’s values in an exaggerated and rigid fashion until we can rethink them and make them our own. Our idea of what adults are and what we’re supposed to be is composed of outdated childhood concepts brought forward.”
—Roger Gould (20th century)
“To be faced with what so-and-so’s mother lets him do, or what the teacher said in class today or what all the kids are wearing is to be required to reexamine some part of our belief structure. Each time we rethink our values we reaffirm them or begin to change them. Seen in this way, parenthood affords us an exceptional opportunity for growth.”
—Ruth Davidson Bell (20th century)