Burt Rutan's White Knight and SpaceShip One, Photo Courtesy of Scaled Composites
Thermodynamics and Propulsion

2. The First Law of Thermodynamics: Conservation of Energy

[VN Chapter 1]

In Section 1.3 we introduced heat and work as the two ways to change the state of a system. We will now introduce the First Law of Thermodynamics to quantify these changes.