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),
Scientific method and religion Scientific method and religion Some controversies exist over the relationship of scientific method to religion. For example, some dispute to what degree scientific method had its origins in Christian theism, or to what degree the scientific method as understood in the 21st century is compatible with religion. In the 18th century, the birth of the scientific method was largely credited to the work of Francis Bacon, Isaac Newton, and John Locke. Modern history suggests that much earlier figures such as Roger Bacon and Islamic scientists also played an important role in shaping the experimental method. Thomas Jefferson wrote "Bacon, Locke