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The ideal gas exerts its pressure thru elastic collisions
with the container.
Kinetic Theory served me well until I was introduced to the Grand
Canonical Ensemble etc.
The force of contact of the gas molecules is the same as the force of
contact between my feet and the floor.
Contact Force was never listed as a 'Fundamental' force.
I was eventually told that I could call it the Pauli Exclusion force.
This made certain amount of sense.
But why was this Pauli Exclusion Force never related to the Four
Fundamental Forces?
Fundamentally, this pressure is
associated with (i.e. is the derivative of) the kinetic energy
of the gas. Neither kinetic energy nor its derivative is listed
among the usual "fundamental" interactions.
and I suspect that every 'force' can be explicated as a suitable
derivative of a suitable energy.
I'll even go so far as to suggest that the Pauli Exclusion Force is
associated with he 'Exchange Energy' which shows up in many
interesting Hamiltonians.
The EM field (i.e. the photon) is spin 1. It's a
boson.
uh, as a good friend of mine would say TBI. (True But Irrelevant)
I'm not grasping this objection.
You're saying that the EM force doesn't apply to non-integer spin
particles???