In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.

[Q]: Ostwald ripening is a consequence of this quantity's dependence on particle size. This quantity is plotted against temperature in an Ellingham diagram, and the Margules and van Laar equations relate this quantity to the activity coefficient. Phillips and Williams modified a diagram plotting this quantity over the Faraday constant against the oxidation state, the (*) Frost diagram. The Flory-Huggins interaction parameter appears in a namesake expression giving the "partial molar" value of this quantity, also generally referred to as chemical potential. It is equivalent to the work done under constant pressure and temperature, and this quantity "of formation" is negative for thermodynamically stable compounds. For 10 points, give this thermodynamic quantity, whose change is equal to the change in enthalpy minus the product of temperature and the change in entropy, which is named after an American scientist.
[A]: Science


[Q]: One of this man's works contains a "doppio movimento" movement where a solo clarinet introduces five variations on a traditional melody. Other compositions by this man include Grohg and Hear Ye! Hear Ye! as well as a work which begins with the song "The Open Prairie". He created a compositions which features sections titled "Corral Nocturne" and "Buckaroo Holiday", as well as a square dance where the Roper and Cowgirl kiss, the "Hoe-down". Many of his ballets were choreographed by Agnes de Mille. For 10 points, name this American composer who created Billy the Kid, Rodeo and Appalachian Spring.
[A]: Fine Arts


[Q]: The sequel to this work, titled American Hunger, was originally not published because the Book of the Month Club did not like its pessimistic ending. The narrator of the work describes many figures from his past, such as Uncle Hoskins, who is killed when his saloon becomes too successful; Ella, a schoolteacher who introduces the narrator to literature with Bluebeard, and his mother Ella and cowardly father Nathan. His problems increase in adolescence after Pease and Reynolds cause him to be fired from his job at the optician's, though he meets a few friendly people like Falk, who gives him his whites-only library card, and the Hoffmans, who employ him after he moves to Chicago and joins the John Reed Society. FTP, identify this autobiography written in the form of a novel by Richard Wright.
[A]:
Literature