[BusterCB87]

Hey,

I have been looking all over and nobody can give me a straight answer. Its like they don't even know.
Example, when someone sings at a certain tone, they can shatter crystal. Basically, the crystal bonds broke apart at that frequency.

I was wondering, how do I find this frequency for an H2O molecule to break the bonds and turn it into H, H, and O?
How is this calculated? what is the actual frequency in KHz?

I have been trying to find research on this and I keep finding conflicting answers and nobody ever shows the actual math they used.

I know that atomic bonds are only so strong, with enough vibrational force, you should be able to brake the bonds.
Just the same way you bend a tree branch or a piece of paper back and forth until it becomes to weak to stay and brakes apart.

EDIT:
Moderators, if there is a more appropriate section to post this, could you please move this thread there?
I posted here because this seemed to be correct.

[Arkcon]

Regrettably, I believe you're conflating dissimilar phenomena, so I'm not surprised you can't find exactly what you need.  Briefly, the particular sound frequency to shatter a glass is more matching the sound harmonics to the vibrational frequency of the object.  This has nothing to do with the "crystal" the glass is made of.

I don't know what sounds match atomic bonds.  i do know that ultrasonics can break bonds that aren't typically broken thermally.  But I really don't know the specifics in that regard.

[BusterCB87]

Yah I forgot about the harmonics of the piece.

I was mostly using that as an example.

I can find studies where they project frequencies into various atomic structures to see what happens, but I'm trying to find credible info where they can predict the frequency to break an atomic bond with math.

I'm doing a project to show the break down of a dielectric given so many volts per meter before break down occurs. and I picked pure water for a dielectric.
I'm using DC, but I was trying to figure out what would happen to the bonds in H2O molecules if they were subjected to different frequencies. Like what frequency would cause enough disturbance to cause the bonds to break?

I know the H2O molecule is polarized, and creating a positive and negative field line them up + - + - etc...
But if I use alternating voltages, I can make it go from +-+- to -+-+ and back again.

But I had a better idea, if I kept +-+- and then pulsed the DC on/off at high voltage (Lower than straight DC dielectric break down) and a high pulsing frequency.

I have been doing some research and learned that water is polarized.
I'm not a chemistry expert. I just think that with a high enough voltage, and fluctuating it on/off, I can cause a dielectric break down, but at a lower voltage.

Much like capacitors, they can function for example up to 200 volts DC, but only up to 40KHz at 100 volts. and above those specs, you have a popped cap.

Or like when your car is stuck in a sunken hole in the grass. you dont just put it in drive and press the gas, you rock it forward and backward to help it break free.
I figure, the same should be possible with an atomic bond. You could rock the atoms back and forth enough to where they break apart simply from the momentum.

I was looking at it like a pendulum. It takes a force to start the swinging, but without a continuous low energy push as it goes up each side, it will find balance at center. But with increased pushing force and speed, that string holding the pendulum weight will break instead of acting like an elastic and helping pull it back the other way.

I hope I'm explaining this right. I'm not a chemistry expert, I'm just an electrical engineer.
and I'm just trying to see if I can break down the dielectric of water sooner at a lower voltage if I operate the DC at a specific pulsing frequency that causes the bonds to fatigue and snap apart or something.

EDIT:
I know the principles behind a microwave, it creates heat by injecting frequencies (radiation) into the food, and the rotation of the atoms like water, causes friction and heat.
I figure, I can keep the atoms lined up, and cause them to physically bend back and forth until I can snap them apart.

[Borek]

To break the bond you need to deliver amount of energy that is at least identical to the bond energy. E=hν should give an estimate, doesn't it?

[Enthalpy]

Yes, resonance of the glass part, not of the crystal.

Water molecules do resonate. Not with sound (ultrasound works an indirect way, for instance through bubble collapse) but with light. Somewhere in the ultraviolet.

Many other means would be more convenient.

[BusterCB87]

Yah, I dont have to just sound waves.

What I dont understand is at what frequency do they resonate at?
Because I keep getting conflicting answers when I try to research it.

And nobody seems to have the math or anything to prove how they got the answer.

I figure, if I can make the material I'm using as a dielectric resonate, I want to see how it compares as a dielectric and how fast it breaks down as opposed to just using it as a dielectric for straight DC.

[Borek]

What I dont understand is at what frequency do they resonate at?
Because I keep getting conflicting answers when I try to research it.

Do you know any quantum mechanics?