Скачать или смотреть Enthalpy | Thermodynamics | Chemistry | Khan Academy

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Understanding why enthalpy can be viewed as "heat content" in a constant pressure system. Created by Sal Khan.

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Chemistry on Khan Academy: Did you know that everything is made out of chemicals? Chemistry is the study of matter: its composition, properties, and reactivity. This material roughly covers a first-year high school or college course, and a good understanding of algebra is helpful.

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