There is no such substance known as plasma gas. Plasma and gas are two separate phases of matter.
Differences Between Plasma & Ideal Gas
Plasma (physics) - Wikipedia
Let's Talk About… getting to know your plasma - Henniker Plasma
You Can Plasma-Cut It, But Can You Weld It?
Plasma Gas Selection Information - Bend-Tech 7x Wiki
Plasma Treatment Explained in Simple Terms - Henniker Plasma
What is Plasma?
Gas Plasma - an overview
States Of Mater Four States Solid, Liquid, Gas, Plasma - By Adding Heat Status Convert From One State To Another First Three States Consist Of Atoms While Plasma Contain Nucleus & Electrons