temperature  [ENDORSED]


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Elle_Bertuccelli_1B
Posts: 24
Joined: Sat Jul 09, 2016 3:00 am

temperature

Postby Elle_Bertuccelli_1B » Fri Jan 20, 2017 3:46 pm

When temperature is involved in the problem, do we use [delta]nRT instead of -P[delta]V for w?

Paul Adkisson 1D
Posts: 23
Joined: Wed Sep 21, 2016 3:00 pm

Re: temperature  [ENDORSED]

Postby Paul Adkisson 1D » Fri Jan 20, 2017 5:29 pm

It doesn't really depend on temperature. If pressure is constant, we use w = -P∆V. Alternatively when pressure is changing, we use -nRT * ln(V2/V1)

Kaitlin_Ryan_ 3K
Posts: 28
Joined: Fri Jul 15, 2016 3:00 am

Re: temperature

Postby Kaitlin_Ryan_ 3K » Fri Jan 20, 2017 6:52 pm

Usually questions will give a specific temperature (i.e. 25 degrees C), but will not give another temperature. This makes it impossible to calculate a change in temperature. All that you need to do is convert the temperature to the correct units (i.e. C to K) and plug into the equation.


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