A clear liquid, mostly methane, both tasteless and odorless Its normal temperature at atmospheric pressure is -2590F It remains liquid at -1160F and 673 psia It occupies approximately 1/600 the volume of the same amount of natural gas in vapor state
(Or LNG) Natural or synthetic gas having methane as its major constituent which has been changed to a liquid or semisolid, normally by reducing its temperature to minus 260 degrees at atmospheric pressure Also: An alternative fuel; a natural gas cooled to below its boiling point of minus 260 degrees Fahrenheit so that it becomes a liquid; stored in a vacuum bottle-type container at very low temperatures and under moderate pressure LNG vapor is lighter than air
When a gas or solid substance liquefies or is liquefied, it changes its form and becomes liquid. Heat the jam until it liquefies You can liquefy the carbon dioxide to separate it from the other constituents. a truck carrying liquefied petroleum gas. to become liquid, or make something become liquid
become liquid or fluid when heated; "the frozen fat liquefied" make (a solid substance) liquid, as by heating; "liquefy the silver" become liquid; "The garden air overnight liquefied into a morning dew