Entropy when only given temp

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Jennifer Fimbres
Posts: 37
Joined: Wed Feb 15, 2023 8:20 am

Entropy when only given temp

Postby Jennifer Fimbres » Sun Mar 17, 2024 11:32 pm

When only given that temperature is 0k and told to solve for entropy is it always 0 or is there a formula to find the value?

Avantika MOhan_2B
Posts: 100
Joined: Fri Sep 29, 2023 11:18 am

Re: Entropy when only given temp

Postby Avantika MOhan_2B » Sun Mar 17, 2024 11:59 pm

Yes! There is a formula. For any given temperature the entropy is calculated using the Boltzmann constant equation, Kb*ln(W). Usually the question states if there are a specific number of moles or orientations of the particle. For example, if its 1 mol it is 6.023*10^23 particles/atoms, so when calculating W, we will do W = orientation ^ 6.023*10^23. Depending on what the molecule is - NH3, benzene, some complicated compound - we should visualize how many possible orientations it can have that make it different. For something like CH4, its just 1. Putting it all together will give us entropy at a certain temperature. Hope this helped!


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