Identifying constant pressure in a question


and

Moderators: Chem_Mod, Chem_Admin

Riya Sood 4G
Posts: 160
Joined: Sat Aug 24, 2019 12:18 am

Identifying constant pressure in a question

Postby Riya Sood 4G » Tue Feb 04, 2020 12:41 pm

What are some key indicators in a question to identify whether pressure is constant or not to calculate the work when the question does not explicitly use the words "constant external pressure"?

KeyaV1C
Posts: 103
Joined: Sat Aug 17, 2019 12:17 am
Been upvoted: 1 time

Re: Identifying constant pressure in a question

Postby KeyaV1C » Tue Feb 04, 2020 12:45 pm

Non-expansion work is one way of knowing that the pressure is constant

Brooke Yasuda 2J
Posts: 102
Joined: Sat Jul 20, 2019 12:17 am

Re: Identifying constant pressure in a question

Postby Brooke Yasuda 2J » Tue Feb 04, 2020 12:52 pm

if it says anything about the system being in equilibrium or being reversible, you know that the external pressure can change

Daniel Toscano 1L
Posts: 95
Joined: Tue Nov 13, 2018 12:18 am

Re: Identifying constant pressure in a question

Postby Daniel Toscano 1L » Tue Feb 04, 2020 12:58 pm

also, be aware that if it just says "an external pressure of [blank]" then it will be constant


Return to “Calculating Work of Expansion”

Who is online

Users browsing this forum: No registered users and 1 guest