Work Equation, changing V and P


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JennaMinami1I
Posts: 18
Joined: Wed Sep 21, 2016 2:56 pm

Work Equation, changing V and P

Postby JennaMinami1I » Sat Jan 21, 2017 4:28 pm

This relates to midterm 2013 question 4 part A in back of course reader

Why is it that when volume and pressure are both changing that work can equal:

w=-nRTln(V2/V1) or w=-nRTln (P1/P2)


Is it because the pressure is inversely related to the volume?

Reem Abu-Shamma 2H
Posts: 23
Joined: Wed Sep 21, 2016 2:59 pm
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Re: Work Equation, changing V and P

Postby Reem Abu-Shamma 2H » Sat Jan 21, 2017 10:23 pm

Yes, that reasoning makes sense.

s_pinto2e
Posts: 4
Joined: Wed Sep 21, 2016 2:58 pm

Re: Work Equation, changing V and P

Postby s_pinto2e » Sun Jan 22, 2017 9:35 pm

Yes, Boyle's law states that at a constant temperature, the volume of a fixed amount of gas is inversely proportional to the pressure. In other words, V∝1/P.


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