Study of macroscopic and microscopic phenomena in chemical systems in terms of physical laws and concepts [thermodynamics, statistical mechanics, kinetic theory, quantum mechanics...].
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1answer
41 views
Is it possible to make use of paper/bill permeate by chemical compound to became a paper-made bullet-proof vest?
Is it possible to make use of paper/bill permeate by chemical compound to became a paper-made bullet-proof vest?
This is inspired by Greece and Italy tend to have more riot than rest of the Europe ...
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1answer
114 views
Circulate smoke in a closed system
Hey i am by no means a scientist but i have a idea for a art work using smoke.
Basically what i want to know is whether it is possible to circulate smoke by means of a pump through a transparent box. ...
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2answers
27 views
A question on lewis model
Electron affinity of chlorine = -349 kJ per mole. And, first ionization energy of sodium = 496 kJ per mole while energy required for combining= 147 kJ per mole.
Isn't it a contradiction against ...
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1answer
80 views
Difference between Non-Polar and Dipole moment $\vec\mu$=0
Is there any difference between a molecule having $\vec\mu=0$ and being Non-Polar?
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0answers
312 views
Is there any reproducible tested evidence for Ni-H cold fusion?
The main replications of cold fusion, the ones that are beyond reproach, used Pd/d as the system. But commercial developers have often claim to use Ni-H to achieve similar effects. The claims include ...
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0answers
18 views
What exponential time dependiciens depends also on temperature?
Are there any laws in nature, which shows exponential decay (or growth) and which also depends on temperature?
For example, don't any chemical transformations demonstrate exponential law? I think ...
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1answer
99 views
How to measure electrical resistance?
Is it possible to theoretically measure the resistance of passing of electrical current through liquid electrolyte (distilled water + NaOH) ?
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1answer
98 views
Which bonds are the cross-links and which are secondary bonds (in elastomers)? [closed]
Elastomeres are "defined" as:
"linear-chain polymers with widely spaced cross-links attaching each molecule to its neighbours"
Now I found sentences (talking about glass transition):
"This means ...
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0answers
37 views
Anyone Know Details About the New Nobel Prizes in Physics and Chemistry? [closed]
The physics prize seems to be in astronomy but, I guess, that falls into the realm of physics for the lack of a separate astronomy prize. The chemistry prize, however, seems to also belong to physics ...
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165 views
In Aerospace Salt Spray tests aluminum often gets covered in slime, what is this slime chemically? [closed]
When conducting MIL-STD-810, Method 509 salt Spray test many metals, but especially aluminum come out covered with slime. The slime usually dries to an easily removed powder. What is this slime? I ...
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2answers
78 views
Carbon in the form of graphite a conductor?
Well, it happens a I have a glucose test strip (One Touch Ultra) which has three electrodes (Counter, Working and Reference) and I'm guessing this electrodes are made from graphite mixed with a ...
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2answers
43 views
what is the density of natural gas at 293K and 700 kPa? [closed]
I am trying to calculate the density of natural gas to define the amount of natural gas flow through an orifice. I am coming up with 5.45 kg/m3 Is this correct?
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35 views
effect of gravity on chemical reaction rates [closed]
a chemical reaction is done on earth in very vacuum and that chemical reaction is also done in space so that gravity higgs field not affect that reaction.
Which reaction will be fast wrt gravity and ...
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1answer
86 views
How fast will I get if I burn a comet? [closed]
Assuming I have a spacecraft which is $30,000\,\mathrm{kg}$ (roughly the size of the Apollo spacecraft).
If I take a comet and (theoretically) electrolize it perfectly to hydrogen and oxygen. I know ...
