The rate of change of temperature {\displaystyle T} with respect to pressure {\displaystyle P} in a throttling process:
(1) | \epsilon_{JT} = \left( \frac{\partial T}{\partial P} \right)_{H} = \frac{\alpha_V \cdot T - 1}{c_{vp}} |
where
For the Ideal Gas: \alpha_V \sim \frac{1}{T} and Joule–Thomson coefficient is strictly zero: \epsilon_{JT} = 0
See also
Physics / Thermodynamics / Thermodynamic process / Throttling Temperature Effect