Joule-Kelvin coefficient at maximum inversion temperature - Thermodynamics

Q.  At the maximum inversion temperature in the graph of isenthalpic or joule-kelvin expansion of a gas, the value of Joule-Kelvin coefficient is
- Published on 20 Aug 15

a. negative
b. positive
c. zero
d. positive, negative or zero depends upon initial temperature

ANSWER: zero

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