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Results tagged with physical-chemistry
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user 1370
Study of macroscopic and microscopic phenomena in chemical systems in terms of physical laws and concepts [thermodynamics, statistical mechanics, kinetic theory, quantum mechanics...].
1
vote
Equations describing the liquifaction of gases
This question first requires some "sorting".
As long as You want to do that with nitrogen or oxygen, so called "permanent gases"
in this context, the answer is no. Linde machines are plants! The f …
- 6,944
2
votes
Accepted
What is the mechanism of dielectric saturation?
I never heard about such an effect, but it is now 40 years ago
since I studied such things.
From what You tell, I can "tinker" the following thoughts:
All reasoning is on the timescale of water …
- 6,944
2
votes
Accepted
determination of voltaic cell voltage
for an example , if i use iron instead
of zinc in the example from wikipedia,
i will get a different voltage?
Yes.
is determined only by the chemical
correlation between the two metals. …
- 6,944
11
votes
Accepted
What happens to chemical compounds that include radioactive nuclei, when those decay?
To deduce this, You have to specify the kind of decay and the nature of the "compund"
is it a crystal, a small molecule in gas phase, a organic material?
Beta decay shifts the nucleus one position u …
- 6,944
2
votes
Accepted
Is it possible to mechanically isomerize an sp3 hybridized carbon center?
The exact answer is a problem of computational chemistry,
maybe somebody has caculated the energy of such a center
in a planar configuration, but I don't know.
In "practice" there is a big problem …
- 6,944
1
vote
Accepted
Air Regeneration in Closed Systems
Here is a Babelfish translation from German Wiki on Life support systems. (Including NASA!)
(English WIKI on the topic is very bad)
*
In order to make for humans possible a
surviving, the supp …
- 6,944
17
votes
Accepted
Why does amount of protons define how matter is?
Long answer: Any Chemistry textbook.
Short answer: The number of electrons of an atom is the same as the number of protons in the nucleus. This number of electrons (Identical to the position number …
- 6,944