The internal energy is a state variable, just like the temperature or the pressure. The first law of thermodynamics defines the internal energy (E) as equal to the difference of the heat transfer (Q) into a system and the work (W) done by the system.E2 - E1 = Q-W We have emphasized the words into and by in the definition.hermodynamics is a branch of physics which deals with the energy and work of a system. Thermodynamics deals only with the large scale response of a system which we can observe and measure in experiments.
exists and is an alternate of . Meaning of Troy - What does the name Troy mean? Pronunciation: troi Gender: Boy Name Origin: English Name Meaning: Transferred use of the surname originating from the place-name Troyes in Aube, Normandy. Also, Troy means foot-soldier because of the invasion of Troyes, Greece.
Troy /troy/ [1 syll.] as a boys' name is pronounced troy. It is of Irish and Gaelic origin, and the meaning of Troy is descendant of the footsoldier.Surname given to those who migrated to England from the French city of Troyes after the Norman conquest of 1066.As a given name, Troy may derive from the ancient Greek city where the Trojan wars were fought.Actor Troy Donahue made the name popular in the 1960s and 1970s. Jane Fonda named one of her children Troy.s a given name, Troy may derive from the ancient Greek city where the Trojan wars were fought. Actor Troy Donahue made the name popular in the 1960s and 1970s. Jane Fonda named one of her children Troy.