Delta U = 0


Moderators: Chem_Mod, Chem_Admin

romina_4C
Posts: 100
Joined: Thu Jul 11, 2019 12:17 am

Delta U = 0

Postby romina_4C » Tue Feb 11, 2020 7:03 pm

What are the specific cases when delta U = 0?

Baoying Li 1B
Posts: 113
Joined: Sat Aug 17, 2019 12:18 am

Re: Delta U = 0

Postby Baoying Li 1B » Tue Feb 11, 2020 7:05 pm

Delta U = 0 for ideal gas when the process is isothermal since the change of internal energy depends on the change of temperature.

Matthew Tsai 2H
Posts: 101
Joined: Wed Sep 18, 2019 12:20 am

Re: Delta U = 0

Postby Matthew Tsai 2H » Sat Feb 15, 2020 11:56 am

Any time there is no change in temperature, delta U is zero.

Veronica_Lubera_2A
Posts: 106
Joined: Sat Sep 14, 2019 12:16 am
Been upvoted: 1 time

Re: Delta U = 0

Postby Veronica_Lubera_2A » Sat Feb 15, 2020 12:02 pm

And when Delta U=0 then q=-w.

Anika Chakrabarti 1A
Posts: 102
Joined: Sat Aug 24, 2019 12:17 am

Re: Delta U = 0

Postby Anika Chakrabarti 1A » Sat Feb 15, 2020 2:05 pm

Delta U = 0 for reversible processes, since any work done is replaced by an equal amount of heat (q = -w)

Caitlyn Tran 2E
Posts: 100
Joined: Fri Aug 09, 2019 12:15 am

Re: Delta U = 0

Postby Caitlyn Tran 2E » Sat Feb 15, 2020 2:15 pm

Another way you could think of this is using the equation that is on our equation sheet. You can also write this equation as , so if an environment is isothermal (meaning that delta T is 0), then delta U would also be 0. Hope this helps!

Callum Guo 1H
Posts: 134
Joined: Fri Aug 02, 2019 12:15 am
Been upvoted: 1 time

Re: Delta U = 0

Postby Callum Guo 1H » Sat Feb 15, 2020 3:18 pm

for an isothermal process

Jacob Motawakel
Posts: 103
Joined: Wed Sep 18, 2019 12:20 am
Been upvoted: 1 time

Re: Delta U = 0

Postby Jacob Motawakel » Sat Feb 15, 2020 3:27 pm

delta U is zero at constant temperature

Juana Abana 1G
Posts: 100
Joined: Wed Sep 18, 2019 12:15 am

Re: Delta U = 0

Postby Juana Abana 1G » Tue Feb 18, 2020 10:28 pm

Delta U is zero when there is no change in temperature.


Return to “Concepts & Calculations Using First Law of Thermodynamics”

Who is online

Users browsing this forum: No registered users and 2 guests