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Qmechanic ♦
Qmechanic ♦
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In general the entropic forceentropic force is defined as

$\vec{F}(\vec{X}_0) = T \vec{\nabla} S(\vec{X})\vert_{\vec{X}=\vec{X}_0}$,

where $T$ is the temperature of the system and $S(\vec{X})$ is the entropy associated to the macrostate $\vec{X}$ and $\vec{X}_0$ is the present macrostate.

I think, that I understand the argument, that a systems tends to evolve in such a manner, that the entropy increases. However I am not sure how to understand this kind of force. Is the entropic force some kind of average force?

In general the entropic force is defined as

$\vec{F}(\vec{X}_0) = T \vec{\nabla} S(\vec{X})\vert_{\vec{X}=\vec{X}_0}$,

where $T$ is the temperature of the system and $S(\vec{X})$ is the entropy associated to the macrostate $\vec{X}$ and $\vec{X}_0$ is the present macrostate.

I think, that I understand the argument, that a systems tends to evolve in such a manner, that the entropy increases. However I am not sure how to understand this kind of force. Is the entropic force some kind of average force?

In general the entropic force is defined as

$\vec{F}(\vec{X}_0) = T \vec{\nabla} S(\vec{X})\vert_{\vec{X}=\vec{X}_0}$,

where $T$ is the temperature of the system and $S(\vec{X})$ is the entropy associated to the macrostate $\vec{X}$ and $\vec{X}_0$ is the present macrostate.

I think, that I understand the argument, that a systems tends to evolve in such a manner, that the entropy increases. However I am not sure how to understand this kind of force. Is the entropic force some kind of average force?

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maxxam
maxxam
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What exactly is an entropic force?

In general the entropic force is defined as

$\vec{F}(\vec{X}_0) = T \vec{\nabla} S(\vec{X})\vert_{\vec{X}=\vec{X}_0}$,

where $T$ is the temperature of the system and $S(\vec{X})$ is the entropy associated to the macrostate $\vec{X}$ and $\vec{X}_0$ is the present macrostate.

I think, that I understand the argument, that a systems tends to evolve in such a manner, that the entropy increases. However I am not sure how to understand this kind of force. Is the entropic force some kind of average force?