temperature [ENDORSED]

[Elle_Bertuccelli_1B]

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

[Paul Adkisson 1D]

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]

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.