Work (thermodynamics) of the energy went out as heat, and how much as work. This can be summarized by saying that heat and work are not state functions of the system. This is in contrast to classical mechanics, where net work exerted by a particle is a state function. Pressure–volume work (or "PV" work) occurs when the volume of a system changes. "PV" work is often measured in units of litre-atmospheres where = . However, the litre-atmosphere is not a recognised unit in the SI system of units, which measures P in Pascal (Pa), V in m, and PV in Joule (J),
The Quest: Energy, Security, and the Remaking of the Modern World The Quest: Energy, Security, and the Remaking of the Modern World The Quest: Energy, Security, and the Remaking of the Modern World is an international bestselling book by energy expert Daniel Yergin. The book was initially published on September 20, 2011 through Penguin Press and is considered to be the follow-up to Yergin’s 1992 Pulitzer Prize winning history of oil, "", and describes the development of the current energy system and prospects for the future. Upon its release, the book received praise and criticism both for its breadth of subject as well as for its impartiality. It is often suggested