expansion

Moderators: Chem_Mod, Chem_Admin

Sophia Dinh 1D
Posts: 100
Joined: Thu Jul 25, 2019 12:15 am

expansion

Postby Sophia Dinh 1D » Sat Mar 14, 2020 6:33 pm

how can you tell if there is expansion?

Julie Park 1G
Posts: 100
Joined: Thu Jul 25, 2019 12:15 am

Re: expansion

Postby Julie Park 1G » Sat Mar 14, 2020 6:38 pm

Expansion will usually lead to an increase in volume (because the internal pressure is greater than the external pressure); likewise, compression will lead to a decrease in volume (because external pressure is greater than the internal pressure)

CMaduno_1L
Posts: 102
Joined: Wed Sep 18, 2019 12:18 am

Re: expansion

Postby CMaduno_1L » Sat Mar 14, 2020 7:39 pm

it is also important to know the difference between gradual expansion and sudden expansion, in which you would apply the appropriate formula. The questions I have seen typically state whether the process is occurring gradually or suddenly. Hope this helps!

Jessica Chen 2C
Posts: 103
Joined: Thu Jul 11, 2019 12:17 am

Re: expansion

Postby Jessica Chen 2C » Sat Mar 14, 2020 11:05 pm

CMaduno_1L wrote:it is also important to know the difference between gradual expansion and sudden expansion, in which you would apply the appropriate formula. The questions I have seen typically state whether the process is occurring gradually or suddenly. Hope this helps!

Sorry, could you explain what the appropriate formula for each case would be?

Bryce Ramirez 1J
Posts: 120
Joined: Sat Aug 24, 2019 12:16 am

Re: expansion

Postby Bryce Ramirez 1J » Sat Mar 14, 2020 11:09 pm

Reversible expansion means that the expansion is gradual, while irreversible expansion means that the expansion is instantaneous.

Alan Cornejo 1a
Posts: 98
Joined: Fri Aug 30, 2019 12:15 am

Re: expansion

Postby Alan Cornejo 1a » Sun Mar 15, 2020 7:43 am

Expansion can be determined if work is done by the system at a constant pressure, so we find that the system expanded against the external pressure.


Return to “Phase Changes & Related Calculations”

Who is online

Users browsing this forum: No registered users and 0 guests