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S = q/T

Posted: Tue Feb 11, 2020 4:59 pm
by Gabriella Bates 2L
When using S = q/T, does the temperature need to be constant? Thanks in advance!

Re: S = q/T

Posted: Tue Feb 11, 2020 5:02 pm
by AArmellini_1I
Yep! If you have changing temperature then you use delta S = n C ln (T2/T1)

Re: S = q/T

Posted: Tue Feb 11, 2020 5:51 pm
by Megan Cao 1I
yes, the temperature is constant for that equation. if the temperature were to change you would use S = C x ln (T2/T1). for C you would use either Cv or Cp depending on which is constant.

Re: S = q/T

Posted: Tue Feb 11, 2020 11:03 pm
by Jainam Shah 4I
Yes, that equation assumes that temperature is constant.

Re: S = q/T

Posted: Tue Feb 11, 2020 11:05 pm
by Elizabeth Harty 1A
What is this equation used for?

Re: S = q/T

Posted: Wed Feb 12, 2020 11:04 am
by Verity Lai 2K
This equation is used to find entropy when the temperature is constant. If the temp or volume change, you use the equations delta S= nRln(V2/V1) or delta S= nCln(T2/T1).