If we compare two solids A and B ( having the same characteristics i.e same object) , if A is at temperature 1 (T1), having a K.E1 and P.E1. B is at temperature 2 (T2) having a K.E2=K.E1 and P.E2 different to P.E1. This case is possible ?
In general : Does variating internal potential energy...
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If I take an extreme case, where a body has only an internal potential energy with zero internal kinetic energy, does this body have a temperature? Another question related to it: if two objects A and B having different temperature: A: having only internal potential energy and B having...
Great. So how the temperature of one molecule in statistical mechanics is related to macroscopic temperature (T= dU/dS) of a volume containing this molecule and many others?
No like I said U can theoretically describe both. For example if U can describe one molecule thus the temperature can describe one molecule. So S can describe one molecule? Then if S cannot describe one molecule, a temperature cannot describe one molecule, so there is a contradiction in the U...
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Internal energy can be defined theoretically for one molecule (U = 1/2 Kb T) for example but entropy is defined for a system thus for many molecules. Then we define temperature equal to δU / δS but here U can be defined for one molecule, so S can also be defined for one molecule? How...
When we say that a fluid has a kinetic energy equal to 1/2 M V2 colliding with a solid, usually we talk about the power of the fluid that is equal to 1/2ρAV3 where V is the velocity of the fluid and A is the surface of the solid. My question is: in the quantity ρAV (mass flow rate), all the...
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When a fluid is flowing, it has of course a kinetic energy and thus we can define kinetic power equal to ρAv v is the velocity and A is the surface of a solid for example. I have a question (maybe it is a strange one) : When fluid collides with a solid, do all the molecules collide with...
If the system is isolated then the system will remain unchanged. I asked this question because I am confused about ΔG=0 for both isolated and non isolated system and how in both case the system behaves. If my answer is right (hopefully), I think I've understood it.