Superheated Steam Demo

Water vapor moves through a copper coil and condenses into fog. Heat is applied to the coil with a propane torch and the water vapor gets superheated enough to ignite a cotton ball. A fire is started with water!

[darkdispeller]

THAT is science... Observable! Thank you for your great video and explanation

[THOMASTHESAILOR]

That was cool, Steam Turbines love that.. If Ya put a reducer on the end of the copper pipe, Pressure must be able to get really high.. I want a Steam Car.. I think I can use a Microwave Magnatron to boil the Water, Then super heat it with a small propane flame.. BOOM ! Hot Car..

[erikm]

Walter White was such a great teacher, seriously though this was very great content

[t-rex]

Would this happen without the steam pressure and just use air pressure instead? Like a heat gun. If that worked would it not somehow disprove the superheated steam theory?

[anelpasic]

My father told me of a story he heard where a tiny hole formed on a boiler of some sort that had super heated steam in it, so a worker unaware of the leak (due to the size of the hole) walked in front of it a got a hole burned right through him.

[dmpyron]

Your torch wasn't really sufficient for the demo. Too much metal to hear. But a great demo👍

[TurinTuramber]

Can water ever be broken into H and O just from direct heat?

[junkdeal]

Help me Mr.chemist!   I understand the principle here. easy with a open system. I have more trouble with this principle in practice with the superheater tubes.  The closed system means the effective boiling temperature of water rises with pressure. I would say steam is saturated as long as it is in the presence of liquid due to the junction of 2 separate phases. The additional rise of temperature does not appear while liquid is boiling. Just more vigorous boiling.  So I can see the separation in your model here. The theory is the same in superheater tubes, because the steam is widely separated from the liquid still in the boiler.  So to heat the gas  (of water)  I can see is possible.  But the pressure will rise with increase of the temp (Boyle's Law?) so it will rise in the entire boiler (if you're not tapping it off),   including above the liquid.  Presumably far higher than the pressure from jjust boiling the water in the enclosed tank at whatever corresponds to the temperature at that pressure.  Does this fact about superheating water at a point ahead of the boiler and causing the pressure to rise in the whole system introduce an anomaly?  Would a check valve be in the piping before the superheater manifold?  This is where I lose my