Celsius kilogram per mole
Molal constantexact by definition
The Celsius kilogram per mole is numerically identical to the kelvin kilogram per mole, and the factor of 1 is exact. The reason is the absolute-versus-interval distinction: the temperature in a molal constant is always a temperature CHANGE, a depression or an elevation, and a Celsius degree of change is exactly a kelvin of change. No offset ever enters.
Watch out: Textbooks write Kf as 1.86 °C·kg/mol and as 1.86 K·kg/mol interchangeably, and both are correct. This is not sloppiness: the quantity really is the same, because the degree in it is an interval.
| 1 | 1 |
One celsius kilogram per mole in every molal constant unit
| 1,000 | kelvin kilogram per kilomole (K·kg/kmol) | |
| 1 | kelvin kilogram per mole (K·kg/mol) | |
| 1 | Celsius kilogram per mole (°C·kg/mol)this unit | |
| 1 | kelvin per molal (K/molal) | |
| 1 | Celsius degree per molal (°C/molal) |
Solvers that use molal constant