EVERYDAY SCIENCE

Detailed explanation-1: -1 Joule–Thomson Effect. By being throttled, the gas undergoes a pressure reduction and under certain conditions its temperature decreases. The phenomenon is called the Joule–Thomson effect and is accompanied by a temperature change of the gas.

Detailed explanation-2: -The Joule-Thomson effect also known as Kelvin–Joule effect or Joule-Kelvin effect is the change in fluid’s temperature as it flows from a higher pressure region to lower pressure.

Detailed explanation-3: -This procedure is called a throttling process or Joule–Thomson process. At room temperature, all gases except hydrogen, helium, and neon cool upon expansion by the Joule–Thomson process when being throttled through an orifice; these three gases experience the same effect but only at lower temperatures.

Detailed explanation-4: -When gas expands, the decrease in pressure causes the molecules to slow down. This makes the gas cold.