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delta u

Posted: Sat Feb 10, 2018 1:46 pm
by Belle Calforda3f
I just really do not understand delta u: what It means, how to caluculate it, how to know if it equals 0. Can anyone help? thanks

Re: delta u  [ENDORSED]

Posted: Sat Feb 10, 2018 1:48 pm
by Tiffany Cao 1D
Delta U is the change in internal energy. It is calculated through the formula, DeltaU=q+w. In an isolated system, deltaU=0 and consequently, w=-q.

Re: delta u

Posted: Mon Feb 12, 2018 11:15 pm
by Dang Lam
how do you know if delta u =0 though? is it because there is no change is temperature? since deltaU = 3/2 R deltaT, and since deltaT = 0, deltaU is therefore =0 as well?

Re: delta u

Posted: Tue Feb 13, 2018 1:30 am
by Nicole 1F
^Yes, everything you said is correct. ΔU=0 for an isothermal process.