Delta U


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Carlos Gonzales 1H
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Delta U

Postby Carlos Gonzales 1H » Mon Mar 19, 2018 11:20 am

Why is delta U a state function if it depends on q and w, which are not state functions?

Hubert Tang-1H
Posts: 44
Joined: Thu Jul 27, 2017 3:00 am

Re: Delta U

Postby Hubert Tang-1H » Mon Mar 19, 2018 12:59 pm

delta U is the change between the initial and final values of U, meaning that the pathway it took doesn't matter, as long as any path begins and ends on the same values.

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Re: Delta U

Postby makenzie2K » Fri Feb 01, 2019 6:04 pm

It is helpful to think of delta U in the sense of a graph mapping the change in reactants and products during a reaction. If you remember, Dr. Lavelle drew us an example of this to represent delta U as a state function. If a reaction takes place and ends up back at the exact same point it started in initially, the total change in position would be 0.

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Re: Delta U

Postby RachelCheung1A » Sat Feb 02, 2019 12:23 pm

Delta U only requires the Final and Initial numbers of U and anything that takes place in between (the path) does not matter. Because delta U just means the change of U from the beginning to the end, it is a state function.

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