Detailed Instructions: 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.
Q: In fluids, this quantity can be considered equivalent to energy per volume. If Bernoulli's principle is expressed with all the terms in distance squared per time squared, this quantity is divided by density, and an increase in this quantity has the same type of impact as an increase in energy. Integrating this with respect to volume gives work, and a calculation of enthalpy involves multiplying this times volume and adding the result to internal energy. This is commonly defined as force per area, and it varies inversely with volume in the ideal gas law. Name this quantity that can be measured in pascals, bars, or atmospheres.
A:
Science