Endothermic and exothermic processes Thermodynamics AP Chemistry Khan Academy

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Keep going! Check out the next lesson and practice what you’re learning: • https://www.khanacademy.org/science/a... • The first law of thermodynamics relates the change in the internal energy of a system (ΔE) to the heat transferred (q) and the work done (w). At constant pressure, q is equal to the change in enthalpy (ΔH) for a process. If ΔH is positive, the process absorbs heat from the surroundings and is said to be endothermic. If ΔH is negative, the process releases heat to the surroundings and is said to be exothermic. Phase changes, chemical reactions, and the formation of solutions are all examples of endothermic and exothermic processes. View more lessons or practice this subject at https://www.khanacademy.org/science/a... • Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help! • Donate or volunteer today! Donate here: https://www.khanacademy.org/donate?ut... • Volunteer here: https://www.khanacademy.org/contribut...

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