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.
What does Sydney mean, popularity, numerology and more. The name Sydney is of French origin. The meaning of Sydney is from st denis, france. It is also of English origin, where its meaning is from St.Denis, France.iew the Sydney Name Popularity Page to see how the popularity trend for Sydney has changed since 1880, or to compare the popularity of Sydney to other names. Sydney is a variant spelling of Sidney. Variants of the name Sydney include Sydne, Sydnie. Sydney has the diminutive (nickname) Sid.