#### Throttling and Joule-Thomson Expansion: Screencasts

Shows the temperature change of non-ideal gases through an adiabatic throttle due to Joule-Thomson expansion.

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Describes the Joule-Thomson coefficient and calculates how much liquid forms when a high pressure gas undergoes a J-T expansion. The Peng-Robinson equation of state spreadsheet can be found on www.chethermo.net/software.

We suggest you list the important points in this screencast as a way to increase retention.

##### Important Equations:

$0= \Delta H$
where $$\Delta H$$ is the change in enthalpy for the fluid from inlet to outlet.
$\mu = \left( \frac{\partial T}{\partial P} \right) _H$
Note that the same symbol $$\mu$$ is used for the J-T coefficient and for chemical potential.