mole_fraction_of_methane_in_dry_air

"Mole fraction" is used in the construction "mole_fraction_of_X_in_Y", where X is a material constituent of Y. A chemical species or biological group denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The phrase "in_dry_air" means that the quantity is calculated as the number of particles of X divided by the number of dry air particles, i.e. the effect of water vapor is excluded. The chemical formula for methane is CH4. Methane is a member of the group of hydrocarbons known as alkanes. There are standard names for the alkane group as well as for some of the individual species.

List containing this term version: CF (84) CF (85) CF (86)

Proposls with this term version:

Proposal: Claudio D'Onofrio [Standard names: dry_atmosphere_mole_frac]

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This term is not aliased.