## Assumptions

isochoric/isometric: $\Delta V = 0$
isothermal: $\Delta T = 0$
isobaric: $\Delta P = 0$

almaochoa2D
Posts: 67
Joined: Fri Sep 28, 2018 12:23 am

### Assumptions

In the homework the textbook often assumes something is an ideal gas or the pressure is constant. How do we know when we can make assumptions like those?

Chem_Mod
Posts: 17949
Joined: Thu Aug 04, 2011 1:53 pm
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### Re: Assumptions

Generally, we will be treating things as ideal gases. Questions often have clues to tell you if there is constant pressure.

davidbakalov_lec2_2L
Posts: 61
Joined: Fri Sep 28, 2018 12:23 am

### Re: Assumptions

These assumptions are usually made to simplify the concepts, and you should be told usually if you aren't working with a gas in ideal conditions. As for constant pressure, that sometimes is required (like in measuring enthalpy).

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