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### Boltzmann equation: positional entropy or thermal entropy?

Posted: **Sun Jan 28, 2018 9:33 pm**

by **Lizzie Zhang 2C**

I get that entropy has two parts: thermal entropy and positional entropy

I'm just confused that for the one with Boltzmann equation, is that positional or thermal?

### Re: Boltzmann equation: positional entropy or thermal entropy?

Posted: **Sun Jan 28, 2018 9:55 pm**

by **Emily Oren 3C**

According to the textbook the Boltzmann equation calculates "statistical entropy," which I think takes both positional and thermal entropy into account.

### Re: Boltzmann equation: positional entropy or thermal entropy?

Posted: **Sun Jan 28, 2018 10:00 pm**

by **Miranda 1J**

I also read somewhere that it "quantifies the entropy of a system", what exactly does that mean in terms of types of entropy?

### Re: Boltzmann equation: positional entropy or thermal entropy?

Posted: **Sun Jan 28, 2018 10:25 pm**

by **Julianna Thrasher 1B**

For Miranda, quantifying simply means putting a number to the amount of energy. If you quantify entropy you add the units Joules per degree Kelvin. For any entropy, both positional and thermal you can quantify it. When you quantify the amount of energy you can evaluate how it was used in reactions.