## internal energy

$w=-P\Delta V$
and
$w=-\int_{V_{1}}^{V_{2}}PdV=-nRTln\frac{V_{2}}{V_{1}}$

Mallika Singh 1G
Posts: 99
Joined: Sat Aug 24, 2019 12:16 am

### internal energy

What exactly is the meaning of U being a state property?

Alexis Webb 2B
Posts: 124
Joined: Thu Jul 11, 2019 12:15 am

### Re: internal energy

it only depends on the current state of the system not how that state was prepared.

Chantel_2I
Posts: 109
Joined: Sat Sep 07, 2019 12:19 am

### Re: internal energy

We can find delta U by subtracting the Initial U from the final U. We simply look at the two states, not the process of getting from the initial to the final.

anjali41
Posts: 109
Joined: Fri Aug 09, 2019 12:15 am

### Re: internal energy

A state property is not dependent on path taken to obtain that state. Additionally, state properties can be added and subtracted. This is all true for delta U.

Lauren Tanaka 1A
Posts: 109
Joined: Sat Aug 17, 2019 12:18 am

### Re: internal energy

Since U is the internal energy it is a state property because it does not matter the final or initial conditions/the path the system took to get to these results.