Joule-Thomson effect i.e., a throttling process is a constant _____________ process?
Correct answer: D. Enthalpy
- A. Entropy
- B. Temperature
- C. Internal energy
- D. Enthalpy
Explanation
A throttling valve operates at steady state with negligible heat transfer and shaft work, so the inlet and outlet enthalpies are equal. Therefore, throttling is an isenthalpic, or constant-enthalpy, process.
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