Teacher: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.
Teacher: Now, understand the problem? Solve this instance: The Young-Dupr equation relates this property to the contact angle. The ratio of buoyant forces to forces generated by this property is the dynamic Bond number. The Marangoni number is directly proportional to the variation in this property during Marangoni convection, which is induced by this property. For certain objects, it is equal to the change in (*) pressure times the radius of the object divided by two via Laplace's Law. Defined as the free energy per unit of surface area, for 10 points, name this tendency for like molecules at an interface to cohere, a property that can be reduced with the use of surfactants.
Student:
Science