Noble gases separated by dewar's charcol?

Answer 1

Argon, krypton and xenon are separated from the Dewar's coconut charcoal. As the temperature is raised, Argon comes out at -120oC, Krypton at -80oC and xenon at 0oC

Answer 2

Dewar's charcoal is used to separate noble gases through a process called fractional distillation. This method takes advantage of the different boiling points of the noble gases to separate them based on their physical properties. As the mixture is heated, the gases with lower boiling points will vaporize first and can be collected separately as they pass through the charcoal.