The Joule-Thomson co-efficient is defined as (∂T/∂P)H. Its value at the inversion point is__________________? August 30, 2021March 12, 2019 by admin The Joule-Thomson co-efficient is defined as (∂T/∂P)H. Its value at the inversion point is__________________? A. ∞ B. 1C. 0 D. -ve