B Ideas regarding gravity and entropy

[Jstoff]

TL;DR Summary

Ideas regarding gravity and entropy

I've never had any physics class before so please bare with me on my lack of understanding.

I've been thinking about gravity and its relation to entropy lately and was wondering if my thinking is correct.

Entropy seems to be an opposing force to gravity. where gravity is creating gradients that can be exploited for mechanical work, entropy seems to try to dissolve them. Are gravitation wells not "localized" spots of low entropy? I hear entropy explained with examples like " You wouldn't expect all of the air in room to be on one side of it, because that's statistically unlikely" which at a glance makes sense but even in an "0 g" environment are the air molecules not "statistically weighted" towards the side of the room with the strongest gravitational pull? Seeing that gravity has unlimited range this means there would always be some type of gradient of pressure no matter how small.

Every example of low entropy systems i can think of are a result of a gravitational pull. Is this correct or am i misunderstanding things?

 

[Dale]

I don’t know much about it, but entropic gravity is an area of research for at least a couple of researchers

https://en.m.wikipedia.org/wiki/Entropic_gravity

 

[PeroK]

TL;DR Summary: Ideas regarding gravity and entropy

I've never had any physics class before so please bare with me ...

"Bear with me" is the expression you are looking for. "Bare with me" is a suggestion that we all take off our clothes together.

 

[PeroK]

Every example of low entropy systems i can think of are a result of a gravitational pull. Is this correct or am i misunderstanding things?

Shannon entropy in not the result of gravity:

https://en.m.wikipedia.org/wiki/Entropy_(information_theory)

 

[Chestermiller]

TL;DR Summary: Ideas regarding gravity and entropy

I've never had any physics class before so please bare with me on my lack of understanding.

I've been thinking about gravity and its relation to entropy lately and was wondering if my thinking is correct.

Entropy seems to be an opposing force to gravity. where gravity is creating gradients that can be exploited for mechanical work, entropy seems to try to dissolve them. Are gravitation wells not "localized" spots of low entropy? I hear entropy explained with examples like " You wouldn't expect all of the air in room to be on one side of it, because that's statistically unlikely" which at a glance makes sense but even in an "0 g" environment are the air molecules not "statistically weighted" towards the side of the room with the strongest gravitational pull? Seeing that gravity has unlimited range this means there would always be some type of gradient of pressure no matter how small.

You don't need to have gravity for the pressure in a system to vary spatially, such as by having all the gas in half the room.
However, it us useful to think of entropy generation as related to smoothing out of velocity-, temperature-, and concentration gradients.