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),
Work unit Communist Party infrastructure. Work units were the principal method of implementing party policy. Also workers were bound to their work unit for life. Each "danwei" created their own housing, child care, schools, clinics, shops, services, post offices, etc. The unit concept used in developing the work unit comes from Hegelian and especially behaviorist social science. Other related examples include the neighbourhood unit in developments, study of living creatures at the level of a defined ecological unit, the entity concept from accounting, the strategic business unit in commerce, the unit concept of church fellowship in the Wisconsin Evangelical Lutheran Synod, the