In this lesson our instructor talks about energy and chemical reactions. First, he talks about the first law of thermodynamics, calculating ∆U, Q, and W, and constant-volume calorimetry. Then he discusses constant-pressure conditions, calculating enthalpy, phase changes, heats of reaction, and using standard enthalpies of formation. He also lectures on enthalpy from a series of reactions and coffee-cup calorimetry.
The first law of thermodynamics states that energy is conserved during a chemical reaction.
Energy can be transferred through heat and work.
Calorimetry problems involve either constant-volume or constant-pressure scenarios.
Enthalpy is the amount of heat transferred under constant pressure.
Energy & Chemical Reactions
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.
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