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.

Two answers required. They figure prominently in the opening chapter of the book of Malachi, where God reminds the Israelites that he is all-loving and above the law because he chose to save one and destroy the other. One had two concubines, Bilhah and Zilpah, while the others name translated from Hebrew means hairy. With the help of their mother, one tricked the other into giving up his birthright for a bowl of soup to fulfill the prophecy that "the last shall be first". For 10 points, name these twin sons of Rebekah and Isaac, the younger of whom fathered Joseph.
Literature

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.
Science

This philosopher's early death left his works in an incomplete state, with much of his work compiled by his students, including the "Opus Parisiense" and the "Opus Oxoniense". Famous for his defense of Immaculate Conception and his analogy comparing man's free will to a horse capable of throwing off grace, its rider, he gained notoriety for challenging the ideas of Thomas Aquinas. FTP, who was this Scottish Fransciscan thinker known as "Doctor Subtilis", whose followers were often called "dunces"

Social Science