Temperature units for Entropy  [ENDORSED]


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Temperature units for Entropy

Postby siannehazel1B » Mon Jan 29, 2018 10:15 am

When solving for entropy when there is a change in temperature while Volume is constant, does it matter if we calculate the T2/T1 in Kelvin or Celcius? If so, which one are we expected to be using?

Janet Nguyen 2H
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Re: Temperature units for Entropy

Postby Janet Nguyen 2H » Mon Jan 29, 2018 10:46 am

It does make a difference since the temperatures are being divided you would get different answers for Kelvins vs Celsius. I think you should be using Kelvins but Im not sure why. might be in the derivation of the formula!

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Re: Temperature units for Entropy  [ENDORSED]

Postby RyanS2J » Mon Jan 29, 2018 10:47 am

It matters, since calculating in Kelvin versus in Celsius gives you different values for the natural log. Entropy should be calculated using Kelvin.

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