A positive value of Joule-Thomson coefficient of a fluid means
- A. Temperature drops during throttling
- B. Temperature remains constant during throtting
- C. Temperature rises during throttling
- D. None of these
Answer: A. Temperature drops during throttling
Explanation: Joule-Thomson coefficient \mu = dT/dP. In throttling dP is negative. If \mu is positive, dT must be negative (cooling).