Question

Which of the following is correct for inversion, temperature in a real gas? (A) The gas can be liquefied by compression at this temperature (B) Joule - Thomson coefficient (uJT) = 0 at this temperature (C) Below inversion temperature, a compressed gas undergoing unrestricted expansion shows a negative temperature change (D) Above this temperature JT has negative value ​

Answer 1

In thermodynamics, the Joule–Thomson effect describes the temperature change of a real gas or liquid when it is forced through a valve or porous plug while keeping it insulated so that no heat is exchanged with the environment. This procedure is called a throttling process or Joule–Thomson process.

Answer 2

The inversion temperature in thermodynamics and cryogenics is the critical temperature below which a non-ideal gas (all gases in reality) that is expanding at constant enthalpy will experience a temperature decrease, and above which will experience a temperature increase.

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