Questions tagged [molecules]
590 questions
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Attraction and repulsion of molecules of the same substance
My physics textbook says, "The amount of force by which molecules attract each other when they are moved away from each other by a certain distance, is lesser than the amount of force by which molecules repel each other when they are moved closer to…
Arxd
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Is "more added heat, more molecular vibration" an universal property? Or are there exceptions?
Is "more added heat, more molecular vibration" an universal property? Or are there exceptions?
Do some substances work the other way around? Or do some other ambient properties modify this property? Such as if the substance is applied electrical…
mavavilj
- 459
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Would I be able to feel a single-molecule wide string?
Imagine there is a material that is so strong it can form several meters string while being only a single molecule wide. It is securely attached and can withstand any human pressure. What happens if I slide my finger across it? Would it cut it or…
Draif Kroneg
- 133
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Shape of molecular bonds
I'd like to model some simple molecules using VSEPR. With what functions should I approximate the sigma and pi bond orbitals?
A simple Gauss would do it?
I'd like to have a good precision.
Thanks in advance
RobertSzili
- 324
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Does my decision of watching a live football game on television affect the game by changing the entropy?
My knowledge on physics is really minimal. But I always wondered if my decision of watching a live Spanish football game on television, while I am in The Netherlands, affects the game in some way, compared to me not watching the live game on…
Krokoko
- 19
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Why do low-precision gaskets & seals work?
In lots of applications water or gas-tight seals can easily be formed by tightening two surfaces together. These often consist of crudely made and inexpertly assembled parts, yet they seal so perfectly that a molecule of air cannot pass through. At…
StayOnTarget
- 672
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What's the size of carbon dioxide?
My question is very simple. How big is a carbon dioxide ($\mathrm{CO}_2$) molecule, i.e. the width, length and height of it?
Mathlight
- 163
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Are the molecular structures in textbooks and physical (or virtual) models what a molecular structure actually looks like?
I do not mean, "How can we see an atom?". I've read those STM microscopes, etc. When I open a textbook on an atom it shows a structure. When I look at something more complex like a Crystal, the structure is shown something like this…
johnny
- 133
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Can you increase kinetics energy if a molecule using something other then heat?
Is it possible ti increase the kinetic energy of a molecules using something other then heat? Is this possible but with ily certain molecules?
DeusIIXII
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can we move molecules in solids or surfaces via applying voltage?
Is it possible to have movement of molecules/atoms in a solid, under electric field? Similar to the movement of electrons under electric potential difference? I was thinking if this can happened to adsorbed molecules in solid surfaces. Can we apply…
ergon
- 725
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Shape of interface between molecules
Two seas do not mix, what are the characteristics of the interface?
If we are trying to draw the molecules together, what would the interface look like?
Rima
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Why do we measure boiling point of a liquid in an opened vessel
Can't we measure the boiling point of a liquid in a closed vessel
