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Postby nelms6678 » Tue Jan 23, 2018 10:31 am

In Gibbs Free Energy, should we always use Kelvin, and is that because we want a positive value?

Sara Sasaki 1K
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Re: Temperature

Postby Sara Sasaki 1K » Tue Jan 23, 2018 10:46 am

I think it's best to keep your answer in Kelvin since it's the standard unit for Gibbs Free Energy! I'm not entirely sure if the reason is so that it's a positive value, but it makes sense to me. Hopefully someone can clarify that part

Jennifer Ho 1K
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Re: Temperature

Postby Jennifer Ho 1K » Tue Jan 23, 2018 10:36 pm

We use Kelvin because that's the absolute temperature, representing the average kinetic energy of the molecules, which is what's relevant in thermodynamics. Using any other unit wouldn't work because the conversion factor between Kelvin and Celsius is additive, not multiplicative, so using only Kelvin keeps things consistent.

Alejandra Rios 1L
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Re: Temperature

Postby Alejandra Rios 1L » Wed Jan 24, 2018 2:49 pm

When using the equation for Gibbs Free Energy it is appropriate to use Kelvin not any other unit of measurement.

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