[Late347]

Ok that's an embarrassing question surely, (I didn't really study chemistry in high school beyond first course, our high school let us skip more advanced science courses, something that I kind of regret doing nowadays). Reason for these questions was simply to get them out there, because I suspect I have had some misconceptions about chemistry in particular, so please be gentle 


1. I suppose, one way to condensate steam form water, back to liquid form water, is to have the temperature simply lowered, so the steam goes back into water?

2. But, what exactly happens at the molecular level, to the steam, when it condensates back into liquid? I mean, ice form water, has a neat and easily understood molecular structure crystals and rigid structure etc...

Liquid form water seems to have some vague clusters of molecules in terms of structure? And steam form water has even less defined structure?

3. Can the same molecular effect, condensation, be affected upon, with different ways than simply cooling temperature? (lets imagine some sort of lab experiment environment here, - so that you can actually see that liquid water appears from the steam)

4. It's just something that popped into my mind, because I've heard from somewhere that there is pressurized liquid form water in nuclear reactor systems? (which is also higher temperature than 100celsius, because pressure is higher?)

5. So, if you had, 100celsius, steam form water, at normal pressure, would you actually be able to also make the same steam form water, into liquid form water, by increasing pressure (like in nuclear reactor systems?) Is this the same as condensation?

[Arkcon]

Yep.  In multi-part format, you have elucidated the general rules of changes of phase.  You can pressurize vapor, and get it to condense into a liquid at a higher temperature.  Here's an article you can use as a starting point to understand this topic better:  http://en.wikipedia.org/wiki/Triple_point  Use the links on that Wikipedia page to figure out more of what you need to fully understand this topic.