Topic: Thermodynamics
What parameter will remain constant in a throttling process?
- A. Entropy
- B. Temperature
- C. Pressure
- D. Enthalpy
Answer: D. Enthalpy
Explanation: In an ideal throttling process, there is no work done ($W = 0$) and the process is assumed adiabatic with no heat transfer ($Q = 0$). By neglecting changes in kinetic and potential energies, the steady flow energy equation simplifies to $h_1 = h_2$. Thus, enthalpy remains constant.