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Wednesday, November 8, 2017

Water Bombed And Cryogenic Hydrogen

If we apply the idea of Tboom to water,

vboomwater=3.4354100010=343.54ms1

Twater=343.54218.0152810338.3144=85.24K   (the boiling point of Fluorine, F exactly)

which is 187.90oC.

Which make no sense.  Water is a solid at this temperature.  It can oxidize further to H2O2.  Does water resist further cooling at this temperature?

If we apply the idea of Tboom to hydrogen gas, H2,

vboomH2=3.43540.089882=0.1544ms1

TH2=0.1544221.0079410338.3144=1.9267106K

Which is way low.  Is this another resistance barrier to cooling?

The biggest assumption is from the use of kinetic theory for ideal gas in the derivation of Tboom, where it is assume that the gas particles are free and does not interact with other gas particles other than through collisions.  Water is liquid and is hydrogen bonded to approximately 3.4 other water molecules.  Ice is a solid and is hydrogen bonded to approximately 4 other water molecules.  Both instances invalidate the free particles assumption.

None-the-less, with water at 100oC of a density 958.4kgm3,

vboomwater=3.4354958.410=329.25ms1

Twater=329.25218.0152810338.3144=78.30K

since water is hydrogen bonded to 3.4 other molecules and we ignore hydrogen bonding beyond the first neighbor.  This hydrogen bonded macro-molecule of (3.4+1) molecules moves as whole and behave like a big gas particle.

Twater,HBonded=329.252(3.4+1)18.0152810338.3144=344.50K or  71.35oC

Using this as a guide, we choose water at 80oC with a density of 971.8kgm3,

vboomwater=3.4354971.810=333.85ms1

Twater=333.85218.0152810338.3144=80.50K

and, assuming that water is a hydrogen bonded macro-molecule of 4.4 water molecules,

Twater,HBonded=Twater4.4=354.20K or  81.50oC

Is this the reason why a bicycle pump goes pop? Or did we have that in the post "Fire Starter" dated 24 Oct 2017.  Water definitely does not boil at 81.50oC.  Does a sealed sphere of pure water have a stable temperature at 81.50oC?  Is water nuclear at 81.50oC?

With ice at a density of 916.7kgm3,

vboomice=3.4354916.710=314.92ms1

Tice=314.92218.0152810338.3144=71.63K

Since ice is hydrogen bonded to 4 other molecules.  We ignore hydrogen bonding beyond the first neighbor and apply kinetic theory for ideal gas to this hydrogen bonded macro-molecule, we have,

Tice,Hbonded=329.252(4+1)18.0152810338.3144=391.5K or  118.35oC

And ice does not melt at 118.35oC either?

Water Bombed!