Helium mixed with oxygen is used in the treatment of

Helium is mixed with oxygen for the respiration by deep sea divers, because

Which noble gas mixed with oxygen is used by sea - divers for their respiration under water ?

A mixture of helium and oxygen is used to assist asthma patients. Why?

Helium is added to oxygen used by deep sea divers because :

One mole of oxygen is mixed withone mole of helium. What is gamma of the mixture?

Equal masses of helium and oxygen are mixed in a container at 25 C^(@) . The fraction of the total pressure exerted by oxygen in the mixture of gases is