kJ/(kg·K)

kilojoule per kilogram-kelvin

Specific heat capacityexact by definition

The kilojoule per kilogram-kelvin is a thousand joules per kilogram-kelvin, the form most thermodynamics tables use because it keeps common values in a comfortable range. Liquid water is 4.186 kJ/(kg·K), dry air about 1.005, steel about 0.49 and copper 0.385. The factor of 1000 is exact, being a decimal prefix.

1 kJ/(kg·K) 1,000 J/(kg·K)