Heat and Ideal Gas Law (or: what’s the difference between a physicist and a chemist?)

The following is mostly relevant for group 10022 (monday). The first video lecture discusses heat and thermal expansion. The second discusses the Ideal Gas Law,

which also can be written as

depending on whether you think as a chemist or a physicist (chemists don’t like large numbers, so they count in units of moles).

Prof. Walter Lewin of MIT (course 8.01, Physics I: Classical Mechanics, fall 1999).