Delta U for Reversible and Irreversible


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Venya Vaddi 1L
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Joined: Fri Sep 28, 2018 12:16 am
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Delta U for Reversible and Irreversible

Postby Venya Vaddi 1L » Sun Feb 10, 2019 8:04 pm

Is delta U equal to zero for both reversible and irreversible reactions? If not, under what conditions is delta U equal to zero?

Andre_Galenchik_2L
Posts: 69
Joined: Fri Sep 28, 2018 12:23 am

Re: Delta U for Reversible and Irreversible

Postby Andre_Galenchik_2L » Sun Feb 10, 2019 8:26 pm

Delta U is equal to 0 when the work done by the system is equally replaced by heat being added into the system.

katie_sutton1B
Posts: 61
Joined: Fri Sep 28, 2018 12:17 am

Re: Delta U for Reversible and Irreversible

Postby katie_sutton1B » Sun Feb 10, 2019 8:57 pm

Also, deltaU = 0 for the isothermal reaction(or compression) of an ideal gas.

Cameron_Greenberg_3C
Posts: 60
Joined: Fri Sep 28, 2018 12:26 am

Re: Delta U for Reversible and Irreversible

Postby Cameron_Greenberg_3C » Sat Feb 16, 2019 10:05 pm

In our class, (delta)U=0 for all reversible reactions. Irreversible ones will not equal zero if there is any expansion work. So if deltaV is not zero, there is energy transferred in the system.


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