delta u


Moderators: Chem_Mod, Chem_Admin

Belle Calforda3f
Posts: 67
Joined: Fri Sep 29, 2017 7:07 am

delta u

Postby Belle Calforda3f » Mon Feb 12, 2018 10:04 am

If temperature does not change, can the internal energy change? If not, can someone please explain?

Cassidy 1G
Posts: 54
Joined: Fri Sep 29, 2017 7:07 am

Re: delta u

Postby Cassidy 1G » Mon Feb 12, 2018 10:13 am

If pressure increases, internal energy can increase even if temperature is constant. This happens when we are NOT dealing with ideal gases because at high pressure, molecules in non-ideal gases repel each other.

Sara Varadharajulu
Posts: 60
Joined: Thu Jul 13, 2017 3:00 am
Been upvoted: 1 time

Re: delta u

Postby Sara Varadharajulu » Mon Feb 12, 2018 10:22 am

internal energy cannot change without a temperature change; this means for isothermal reactions delta U is zero. this is because of the equation delta U=(3/2)nR(delta T)---it should be on the equation sheet as internal energy for an ideal gas.

Return to “Thermodynamic Definitions (isochoric/isometric, isothermal, isobaric)”

Who is online

Users browsing this forum: No registered users and 1 guest