Linked Questions

11 votes
1 answer
2k views

Is temperature of a single molecule defined? [duplicate]

Is temperature of a single molecule defined? This question just cropped up in my mind as I have often heard of laws being violated when it comes to the scale of a single molecule. Does this happen in ...
user2369284's user avatar
3 votes
2 answers
550 views

Why isn't temperature definable for a single, classical particle? [duplicate]

I read that the relation between temperature and kinetic energy of an ideal gas is only applicable to a large number of particles so that the mean value for kinetic energy has to be considered, so the ...
Edoardo Serra's user avatar
1 vote
3 answers
1k views

What is the temperature of a single proton? [duplicate]

As it is said in general classical statistical mechanics, that temperature is nothing but just an integrating factor and T($E_{avg}$). And as proton is not a fundamental particle rather have inner ...
Vivekanand Mohapatra's user avatar
0 votes
1 answer
199 views

What is meant by the temperature of an atom? [duplicate]

Does it make sense to ask 'what is the temperature of an atom?'. An atom can be considered a SYSTEM of particles (electrons and nucleons) that are structured in a particular way. So can it be assigned ...
shashank shekhar singh's user avatar
1 vote
3 answers
160 views

Can we say an isolated molecule has/is at some Temperature? [duplicate]

I am studying some quantum mechanics and thermodynamics. I have seen that in QM temperature doesn't appears in the formulas. But it appears in statistical mechanics formulas. The question is: ...
user avatar
1 vote
0 answers
91 views

Can a single atom in vacuum space have a temperature? [duplicate]

Say that there was a single atom alone in a vacuum without any particles for it to bounce off of; would it have a temperature? As we all know motion is relative, however with nothing to bounce or ...
bong ripsdaily's user avatar
0 votes
0 answers
38 views

Does a standalone neutron have temperature? [duplicate]

Most objects exhibit a property called temperature which measures how much thermal energy is radiated off, and I think the electron(s) inside the atom or molecule is responsible for creating that ...
user6760's user avatar
  • 13.1k
10 votes
11 answers
1k views

Temperature of individual particles in kinetic theory?

Is it valid to assign a temperature to individual particles within kinetic theory and then claim that the temperature of the gas is simply the average of the temperature of the molecules? In other ...
looksquirrel101's user avatar
2 votes
2 answers
1k views

In a real gas is heat carried by molecular vibrations as well as translational velocity?

It's clear that the mean velocity of gas particles determine what we measure as temperature, but is there also a significant amount of energy carried in molecular vibrations? For example, at the same ...
docscience's user avatar
  • 11.7k
3 votes
1 answer
1k views

Does a single molecule or atom have a density?

In a science lab I did recently we placed wax candles into two different liquids to see if they would float or sink. In one liquid, the candle floated, and the other one it sunk. We swapped the ...
Pyram Linum's user avatar
1 vote
3 answers
247 views

Can a single particle be "heated" by radiation?

From the point of view of statistical thermodynamics, a single particle doesn't have a phase (state of matter), nor temperature. What would happen if heat is transported to this single particle via ...
Sparkler's user avatar
  • 3,304
0 votes
4 answers
278 views

Can two atoms collide inelastically?

Suppose I have an atom A (of mass $m$) moving randomly with some velocity $v$ in free space. Now suppose there is one more similar atom B but moving with a different velocity (smaller than $v$) on the ...
Ankit's user avatar
  • 8,456
1 vote
2 answers
315 views

Can I apply first law of thermodynamics on atoms?

I am sorry if this question is dumb but can we apply the first law of thermodynamics directly on atoms? I've say an ion and I'm adding an electron to it, can I write anything like $$d U=d Q-d W$$ to ...
Kashmiri's user avatar
  • 1,340
0 votes
1 answer
140 views

Hydrogen atom at $T=0K$ [closed]

If I have an hydrogen atom at $T=0K$ from Boltzmann distribution I can have only the G.S populated, so if I send to this atom photons at all energies is impossible to excite the atom, is this right? ...
Salmon's user avatar
  • 951
0 votes
1 answer
115 views

Is the kinetic theory of gas relative in nature

In kinetic theory of gas the foremost assumption is that the temperature of an object is due to the kinetic energy of the atoms/molecules contained in it. But as we know that kinetic energy is a ...
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