Calculating work

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Banik_Housepian_2K
Posts: 39
Joined: Wed Sep 21, 2016 2:59 pm

Calculating work

Postby Banik_Housepian_2K » Wed Jan 18, 2017 7:11 pm

Today we learned how to use the integral to calculate the work done under constant pressure.
I was wondering whether we can use integrals to calculate work if the pressure is not constant, and if so, how?

Logan 3C
Posts: 22
Joined: Wed Sep 21, 2016 2:57 pm

Re: Calculating work

Postby Logan 3C » Tue Jan 24, 2017 9:03 pm

That's part of the proof to getting the equation for an reversible, isothermal expansion on page 31 in the course reader. Its much more helpful to use the final equation though, at least in my opinion.

Tina_Keshishian_2F
Posts: 19
Joined: Tue Oct 04, 2016 3:02 am

Re: Calculating work

Postby Tina_Keshishian_2F » Tue Jan 24, 2017 10:30 pm

I find the integral part of the equation a bit confusing, so I use the final equation also.

It's w=-nRT(ln(Vfinal/Vinitial))


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