Dear abc420;
Do you know the definition of Superheated Steam?
In this case you know that it must be handled above the condensing temperature like any ordinary gas.
And if you are able to keep pressure really constant, so the Steam must condense at the boiling point of water for this pressure!
With this answer in mind, its easy to answer also all other questions of your thread.
I hope to have been of some help to you.
Good Luck!
ARGOS++