In this lesson our instructor talks about energy, heat, and work. He talks about thermochemistry, temperature and work. He also discusses system, surrounding, exothermic, and endothermic process. He does three helpful example problems to round up the lesson.
Thermodynamic quantities always have two parts: a numerical value and a sign. The sign indicates the direction of flow. We always take the System’s point of view.
Heat is the thing that “flows” due to a temperature difference: heat flows from a hotter object to colder object.
There are two ways to transfer energy: Heat and Work.
The change in energy of a system is the sum of the Heat transferred to/from the system + the Work done to/by the system. In equation form, ΔE = q + w
Energy, Heat, and Work
Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.