Matter and Heat
Lecture no. 23 from the course: Physics and Our Universe
Taught by Professor Richard Wolfson | 30 min | Categories: The Great Courses Plus Online Science Course
Heat flow into a substance usually raises its temperature. But it can have other effects, including thermal expansion and changes between solid, liquid, and gaseous forms—collectively called phase changes. Investigate these phenomena, starting with an experiment in which Professor Wolfson pours liquid nitrogen onto a balloon filled with air.