1 performed, undertaken, or brought about by free choice, willingly, or without being asked. a voluntary donation. 2 (of persons) serving or acting in a specified function of one's own accord and without compulsion or promise of remuneration.
The Ideal Gas Law is one of the Equations of State. Although the law describes the behavior of an ideal gas, the equation is applicable to real gases under many conditions, so it is a useful equation to learn to use. The Ideal Gas Law may be expressed as: PV = NkT.
The NGA, 15 U.S.C. Â§ 717(a), provides that the business of transporting and selling natural gas for the ultimate distribution to the public is affected with a public interest, and that federal regulation in matters relating to the transportation of natural gas and the sale thereof in interstate commerce is necessary and in the public interest.