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Valeria Viera 1B
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Joined: Fri Apr 06, 2018 11:05 am


Postby Valeria Viera 1B » Sun Feb 10, 2019 11:13 pm

How do you know if work was done on the system or if system did work on its surroundings? I know it’s a difference of work being negative but I don’t understand why

Posts: 60
Joined: Fri Sep 28, 2018 12:26 am

Re: Work

Postby mahika_nayak_3L » Sun Feb 10, 2019 11:17 pm

When the system does work on the surroundings, it loses energy – that is why the value of work is negative. When the surroundings do work on the system, the system gains energy and the value of work is positive.

Alma Flores 1D
Posts: 64
Joined: Wed Nov 08, 2017 3:01 am

Re: Work

Postby Alma Flores 1D » Sun Feb 10, 2019 11:19 pm

Work is being done on the system by its surroundings when the system absorbs heat. This would be positive. When work is being done by the system on its surroundings then they system releases heat. This would be negative.

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