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Author Topic: How Mass increases and decreases in a "chemical Process" and mass-energy in gen  (Read 1264 times)

Offline psc

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Dear Chris and company,

Please bare with me so you can relate to my question.

I read the following with interest as I have been looking for an answer for this question ever since I saw a program called catalyst on ABC TV and before but I could never satisfy my self that what I thought was correct.
http://www.thenakedscientists.com/forum/index.php?topic=16622
No one could give me a clear explanation on the mechanics of it..until now.

to Quote lightarrow...
Quote
1. The energy you give to the battery, and its mass as consequence, since the battery stays still, goes in increasing the chemical potential of its compounds; PbO2 for example has a greater chemical potential than PbO or PbSO4. Essentially the chemical potential is related with the electronic potential of the chemical species. Simplifying furthermore,  the increase in mass goes in the increase of the electromagnetic fields of the chemical's electrons.

A simple example: you give electromagnetic energy (of the right frequency) to an hydrogen's atom. The atom absorbs a photon and as a consequence its electron jumps up to the first excited level. At this moment the hydrogen atom has not the mass it had before:  its mass is increased (almost exactly) of E/c2 where E is the photon's energy.
"Almost exactly" because the atom don't stay exactly still after have absorbed the photon (anyway the difference is very small).

Where does the atom's mass increase has gone? It has gone in the increased electromagnetic field in the space between the nucleus and the atom's outer edge (the excited atom has a different spatial distribution of the electron).

My questions are

1.Referring to "...the increase in mass goes in the increase of the electromagnetic fields of the chemical's electrons." Does Electromagnetic energy have mass? Or (apparent) mass attributed through E=mc? then is it real mass as we know it? IE, Will the force of gravity increase on the H atom? I have difficulty in grasping the idea? May be a reference or example might help.

2. if a hydrogen atom were to be thrown the mass would increase. In this situation mass would increase by E/C where E is mv (in flight)is this correct. Where does this mass increase go? into the electromagnetic field? How? We accept that mass increases, I accept that mass increases, but where does the extra mass go. is it distributed equally among protons, (neutron for other elements), electrons...etc?

Stand alone questions.

If I am presented with a mole of what looks like an electron circling a proton and someone asks what is this and I answer
the mass is 1g therefor it is an energy of approx. 9x10^13J would I be called a fool or failed in an exam?
I know it would depend on which exam I suppose, but why, the truth is the truth. Is the answer a mole of hydrogen more truthful then the energy?

If we can say that a mole of H atoms is energy then what is real.
are electrons and protons real? Or wishful thinking? I think they are particles so they are?
Is the rock that I trip over energy or matter? if matter why?
Why is the "particles" that come out in a cyclotron called particles and not energy?

Hope you will be able to answer as clearly as the battery question.
Patrick



« Last Edit: 06/09/2010 16:35:20 by psc »


 

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