Excessive steam calories calculation

There must be no such small

It is estimated that the prince of the country is wrong, because it should be 1 kcal instead of 1J:
100 to 165 ℃ The steam ratio is about 2.1kJ/kgk, the density is about 2kg/m3, soFor calculations, every time the steam is elevated in this interval, it takes about 1 kcal.

is every KG water under the standard state, and every temperature is increased at every time, the required heat is 1kcal \u003d 4.1868kj