Question

Throttling process is a/an ___________ process.

• A. reversible and constant enthalpy
• B. irreversible and constant enthalpy
• C. reversible and isothermal
• D. none of these

Answer 1

The correct option is B irreversible and constant enthalpy

Throttling process is the process in which a high pressure fluid is converted to low pressure fluid at constant pressure using a throttle value. In throttling process, work done is O & enthalpy is constant. It is an irreversible process.

Joule's thompson coefficient $\left(\mu \right)=\frac{dT}{dP}$ at constant H.