## Micro states

$\Delta G^{\circ}= \Delta H^{\circ} - T \Delta S^{\circ}$

$\Delta G^{\circ}= -RT\ln K$

$\Delta G^{\circ}= \sum \Delta G_{f}^{\circ}(products) - \sum \Delta G_{f}^{\circ}(reactants)$

Harsha 1J
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Joined: Fri Sep 29, 2017 7:05 am

### Micro states

What are microstates?

Sarkis Sislyan 1D
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Joined: Thu Jul 27, 2017 3:00 am

### Re: Micro states

Microstates are the positions molecules can take and are what we can use to determine entropy.

Marina Georgies 1C
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Joined: Sat Jul 22, 2017 3:00 am

### Re: Micro states

number the many possible positions molecules can be arranged in in a system. #possible states^#particles=degeneracy (W)

Janine Chan 2K
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### Re: Micro states

Also, the more microstates there are, the higher the entropy.

Posts: 31
Joined: Sat Jul 22, 2017 3:00 am

### Re: Micro states

The microstates are different positions, or states, that molecules can take in a system. An example talked about in class were the differences between solids and gases. Molecules in solids can have only few positions since molecules are packed together so tightly and can't move around. Thus, solids have low entropies. On the other hand, gases are very spaced out and can move around freely and switch positions. This means that there are many different positions that these molecules can take. Therefore, gases have greater entropies.

Jessica_Singh_1J
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Joined: Fri Sep 29, 2017 7:03 am

### Re: Micro states

Microstates are the number of possible positions and motions a molecule can take on in a given system. As entropy increases, so does the number of positions and motions available to the molecule.

For example, in the case of the expansion of a gas, given more space, the molecules of the gas are less constrained and able to move about more freely. They have more positions available to them and move about at a larger range of speeds, so they have more entropy.