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]: The Soave equation adds an acentric factor to this statement, and the virial equation measures deviations from this law using a compressibility factor. This law derived by Benoit Clapeyron can account for density in its "dirty mop" form, and when A and B terms are added to account for the volume and interactions between particles, it is called van der Waals equation. Containing a namesake constant that is Boltzmann's constant times Avogadro's number is, for 10 points, what law usually stated as PV equals nRT
[EX A]: Science

[EX Q]: People escaping during this event utilized the McCorkell Line to seek passage to Canada and US. In the country where this took place, it is referred to as ""an Gorta Mor"" or ""an Drochshaol. "" One response to this event was Robert Peel's decision to repeal the Corn Laws. Thought to be caused an oomycete known as Phytophthora infestans, this event resulted in approximately a million deaths. For 10 points, name this massive dying caused by a blight, which affected a particular crop in the 1840's and 50's in Ireland.
[EX A]: Social Science

[EX Q]: Hadamard regularized this operation under certain conditions by dropping divergent terms. Measure theory is used in Lebesgue's [le-bays] theory of this operation, and Fubini's theorem states that its order in iterated versions can be changed. For products of functions, this operation is often done(*) "by parts." Simpson's Rule approximates this process using trapezoids, while Bernhard Riemann devised a method using rectangles. The "definite" kind of this process finds the area under a curve. For 10 points, name this mathematical technique, the opposite of differentiation.
[EX A]:
Social Science