Question

What is Density & Joule Thomson Effect?

Answer 1

Joule–Thomson effect :
In thermodynamics, the Joule–Thomson effect describes the temperature change of a gas or liquid when it is forced through a
valve or porous plug while kept insulated so that no heat is exchanged with the
environment. At room temperature, all gases except hydrogen, helium and neon
cool upon expansion by the Joule–Thomson process.



Density
The mass density or density of a material is its mass per unit volume.Mathematically, density is defined as mass divided by volume:
ρ = m/V ,
where ρ is the density, m is the mass, and V is the volume.