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.

[EX Q]: It holds only when the molecular attraction between different components is equal to the attraction of any one component in its pure state. Dealing primarily with changes in colligative properties, it allows for the calculation of molecular weights of dissolved substances and leads to the definition of a solution as ideal. FTP, identify this law that relates the vapor pressure and mole fraction of a solution, a law named for its French discoverer.
[EX A]: Science

[EX Q]: One character in this work pretends to sing a fashionable song from "The Vain Precaution" in a scene that ends in the quintet "Buona Sera". This opera's tenor pretends to be a drunken soldier when he meets the servant girl Berta, while in the aria "Calumny is a little breeze", Doctor Bartolo receives advice from Don Basilio. Its popular overture was intended for its composer's Aureliano in Palmira, while its first act sees Rosina describe her love for Lindoro in "Una voce poco fa". This opera's title character first appears singing the aria "Largo al Factotum" and aids Count Almaviva in wooing Rosina. For 10 points, name this opera about Figaro, composed by Gioacchino Rossini.
[EX A]: Fine Arts

[EX Q]: One author from this country wrote about Humberto Pealoza, who is successively transformed into a mute, a nun, and an infant, in a novel about the monstrous offspring of Ines and Jeronimo Azcoita, The Obscene Bird of Night. Another author from this country wrote the poetry collection Desolacin, as well as three sonnets mourning the death of Romelio Ureta. Besides Jose Donoso and Gabriela Mistral, a poet from this country wrote The Elemental Odes and Canto General. For ten points, identify this South American country home to Pablo Neruda.
[EX A]:
Literature