## Delta U equal to zero

$\Delta U=q+w$

melissa_dis4K
Posts: 106
Joined: Fri Sep 28, 2018 12:28 am

### Delta U equal to zero

Is delta U equal to zero for irreversible processes?

Nicole Lee 4E
Posts: 60
Joined: Fri Sep 28, 2018 12:16 am
Been upvoted: 1 time

### Re: Delta U equal to zero

Delta U is equal to 0 for reversible processes.

Sarah_Kang_2K
Posts: 72
Joined: Fri Sep 28, 2018 12:23 am

### Re: Delta U equal to zero

Delta U = 0 for any isothermal expansion of an ideal gas, it doesn't have to be reversible.