Work function

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Cristian Carrasco 1F
Posts: 52
Joined: Fri Sep 29, 2017 7:06 am

Work function

Postby Cristian Carrasco 1F » Tue Jan 16, 2018 6:41 pm

when is W positive and when is it negative??

Daniisaacson2F
Posts: 30
Joined: Sat Jul 22, 2017 3:00 am

Re: Work function

Postby Daniisaacson2F » Tue Jan 16, 2018 7:22 pm

I'm pretty sure it depends on whether work is being done by the system or on the system. I'm assuming if it was being done ON the system, it would be positive and vice versa.

ConnorThomas2E
Posts: 57
Joined: Fri Sep 29, 2017 7:04 am

Re: Work function

Postby ConnorThomas2E » Tue Jan 16, 2018 7:59 pm

When the system is gaining energy through work, or when work is being done on the system from the surroundings, W is positive. when the system releases energy by doing work on the surroundings, W is negative.

Nicole Jacobs 1C
Posts: 59
Joined: Thu Jul 13, 2017 3:00 am

Re: Work function

Postby Nicole Jacobs 1C » Tue Jan 16, 2018 8:31 pm

i also think w is negative when the reaction is expansive and the delta V is positive, and 0 when the reaction takes place in a vacuum with free expansion.

Amanda Wu 2C
Posts: 31
Joined: Sat Jul 22, 2017 3:00 am

Re: Work function

Postby Amanda Wu 2C » Tue Jan 16, 2018 10:11 pm

When work is done on a system, the value of w is positive (w > 0) while when work is done by the system, the value of w is negative. (w < 0).


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