How much heat is required to convert steam of 100c to water of 100c?
The referenced website says "The latent heat of vaporization is the amount of heat required to convert a unit mass of a liquid into vapor without a change in temperature." A table on the page says that the heat of vaporization of water is
So converting steam of 100c to water of 100c would require removing 2257 kJ of heat from each kg of the steam.
I hope this helps,