What is Joule-Kelvin coefficient? - Thermodynamics

Q.  The following graph shows the T-p relation of gas after throttling when pressure and temperature before throttling are kept constant. The curve shown in graph is an isenthalpic curve. What is the value of the slop of the curve called?

- Published on 19 Aug 15
isenthalpic-state-of-gas.png


a. Throttling coefficient
b. Joule-Kelvin coefficient
c. Isenthalpic coefficient
d. none of the above

ANSWER: Joule-Kelvin coefficient

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