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.
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Question: An approximation of it named for Russell uses the TDS value to determine one of its parameters via the Langelier approximation, while one constant that appears in it has units of moles per kilogram to the one half power, according the Bates-Guggenheim convention. Along with Guggenheim, Scatchard and Bronsted improved upon this model by developing the SIT theory, and that model has a better fit than a modification of it named for Davies. This relationship assumes the existence of only long-range interactions, and it was extended to account for Brownian motion by Lars Onsager. It assumes that the solvent is structure-less and that the solution is dilute, and the theory behind it implies that the electrostatic potential falls off exponentially when r is greater than the atomic radius due to screening by counter ions. For 10 points, identify this equation which is used to calculate the activity coefficients, and is named for a German and a Dutch scientist.

Answer: Science

Question: In one novel by this author, the title character dances with Barbra Flick while choosing not to pursue the tanner Emil Rothfuss's wife. This author of Knulp wrote about Joseph Knecht's pursuit of the role of Magister Ludi in the title intellectual game, and described a journey undertaken with Govinda in search for the Buddha in another novel. This author of The Glass Bead Game wrote about the saxophonist Pablo bringing Hermine to the Magic Theatre, causing Harry Haller to stab her. For 10 points, name this German author of Siddhartha and Steppenwolf.

Answer: Literature

Question: The lower right of this painting contains a pair of discarded masks and the lower left shows a dove beneath one of the title figures feet. The left side shows a woman thought to represent syphilis or jealousy, holding her head in agony. A girls face extends from behind another of the title figures, and she holds a honeycomb in what appears to be her left hand attached to her right arm. In the background, an indistinct figure attempts to spread a dark blue sheet over the central figures, but another of the title characters, an old, bearded man, prevents it. One of the central figures holds an arrow in one hand and a golden apple in another and is completely nude as she kisses her similarly nude son. FTP, name this most famous work of Agnolo Bronzino.

Answer:
Fine Arts