Chemical Engineering Thermodynamics

Throttling process is a/an _____ process.

  • A. Reversible and isothermal
  • B. Irreversible and constant enthalpy
  • C. Reversible and constant entropy
  • D. Reversible and constant enthalpy
Answer: Option B.

Always during throttling there is viscous dissipation which tries to increase the intermolecular energy and there by the temperature of the fluid which is non-conservative in nature so, the throttling is considered as irreversible process and we usually conduct this in an adiabatic container and if we see only the intermolecular energy and the pressure energy inter conversion takes place maintaining the enthalpy constant the pressure energy only converts to the intermolecular energy.

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