Neon.
The element used is called neon.The element used is called neon.
Neon gas is generally used, with little argon
Helium is generally used; special spectrometers to detect helium leakage are designed.
usually 40 va
generally no, most common detector used is thermal conductivity which does not change the chemical makeup.
Hydrogen was first used but was generally replaced with helium because of it's flammability.
A condenser is generally an object made from glass, used to condense a gas to a liquid.
Freon is a tasteless odorless gas that is used to cool refrigerators and air conditioning units. Limited exposure to the gas is generally not harmful, large amounts however can be poisonous.
Generally gaseous/æreiform, however liquid oxygen is ALSO a thing. The latter was used in the first liquid fuel rocket by Robert Goddard.
Generally speaking that is the "R12 Freon" used in the air conditioning up until around 1995. After that R134 and R134a is used.
A can of compressed air spray generally contains a liquefied gas, such as difluoroethane or tetrafluoroethane, which evaporates into a gas when sprayed. This gas is used for cleaning electronics and keyboards by removing dust and debris.
A hotplate is a small and portable kitchen appliance that features a heating element that can be gas-powered or electric. They are generally used for food preparation.