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Michelle Song 1G
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Joined: Wed Nov 14, 2018 12:23 am


Postby Michelle Song 1G » Tue Jan 29, 2019 6:27 pm

The solutions manual states that the equation for the irreversible work of expansion against a constant opposing pressure is given by w= -P delta V. Why do you have to multiple the result by 101.325 J.L^-1.atm^-1?

Posts: 31
Joined: Fri Sep 28, 2018 12:19 am

Re: 4B.13a

Postby KimGiang2F » Tue Jan 29, 2019 9:19 pm

With the equation w=-Pex(∆V), the resulting unit is L•atm. 1 L•atm= 101.325 Joules. Essentially, you have to multiply your answer by 101.325 Joules in order to have the answer written in SI units.

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