Hess's law | Thermodynamics | AP Chemistry | Khan Academy

Hess's law states that if a process can be expressed as the sum of two or more steps, the enthalpy change for the overall process is the sum of the ΔH values for each step. To use Hess's law, two principles must be understood: one, if an equation is reversed, the sign of the ΔH value is also reversed. Two, if an equation is multiplied by a coefficient, the ΔH value is multiplied by the same coefficient. View more lessons or practice this subject at 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: www.khanacademy.org/donate?ut...
Volunteer here: www.khanacademy.org/contribut...

[@rosieej5267]

Thank you all for the effort to help us poor individuals

[@ChemSimplified]

Love how you walk through the solution step by step in a very succinct manner. Thanks for the video.

[@togzhanallabergen2336]

Thank you so much ! you helped me a lot in 5minutes , I was studying for 1 hour 😄

[@RealEverythingComputers]

Thanks, awesome explanation - big help!

[@iamsoawesomel2847]

Super epic man

[@mohanraina2036]

Thanks ❤️

[@rajrajesh3792]

where u from..u got 250 views at 4:00 indian time...BTW nice explaination ❤️🔥

[@aryanraj441]

please upload more video for AP chemistry & biology

[@ChemSimplified]

What kind of topics are you currently working on for AP Chem?

[@aryanraj441]

@@ChemSimplified stoichiometry and atomic structure

[@ChemSimplified]

@@aryanraj441 Perfect! I was just thinking of adding stoichiometry videos to my channel.

[@MasterCivilEngineering]

Master in engineering knowledge here🇺🇸🇺🇸🇺🇸🇺🇸👍

[@pokechamp4473]

hi

[@Madow-el2ij]

i literally don't know why i'm watching this i'm a junior

[@roachbois2473]

im watching this bc my mom told me to...

[@Dr.Mowgli.mi.]

Please explene in hindi