Scientists Find a Simple Way to Produce Hydrogen From Water at Room Temperature

Skratch

Chief Journeyman
Joined
Dec 27, 2011
Messages
1,003
Location
Huntley Il.
Tagline
Life is short, so take your time
#9
If hydrogen and oxygen propelled the moon rockets why does h2o die out a fire?
 

J!m

Veteran and General Yakker
Joined
Dec 24, 2019
Messages
6,305
Location
Connecticut
Tagline
BOT
#10
Because the bond is the strongest out there.

We use hydrogen as a secondary gas the the plasma guns which operate around 10,000 degrees and it doesn’t burn- the H2 disassociated to H+H in the ionized stream (releasing a lot of energy) and then recombine to H2
 

8991XJ

Chief Journeyman
Joined
Oct 8, 2011
Messages
898
#11
If hydrogen and oxygen propelled the moon rockets why does h2o die out a fire?
As stated the H-O-H bonds are very stong requiring a lot of energy to break them to produce H2 and O2, up until the OPs linked method was found. These strong bond do not allow water to be broken into its constituent gases in a fire. But when the two are combined in an engine they produce that high amount of energy and can propel spacecraft nicely when the reaction is properly controlled.
 
Last edited:

J!m

Veteran and General Yakker
Joined
Dec 24, 2019
Messages
6,305
Location
Connecticut
Tagline
BOT
#12
And you get a lot of water vapor!

Hydrogen burns over a very wide range of oxygen concentrations. It is also the fastest burn of all the gasses- perfect as a propellant. It is ideal for HVOF spray for these same reasons. Methane (manufactured CH4) is a close second in the speed department.
 
Top