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CrashCourse · 2018년 7월 12일 게시
In today’s episode we’ll explore thermodynamics and some of the ways it shows up in our daily lives. We’ll learn the zeroth law of thermodynamics, what it means to reach a thermal equilibrium, and define the first law of thermodynamics. We’ll also explore how stationary, adiabatic, and isochoric processes can make our lives as engineers a little easier. Note: Different branches of engineering sometimes define the first law of thermodynamics differently, depending on how work is defined. Essentially, work released from a system might be defined as a positive value or a negative value, and thus the first law can be defined as either Q-W or Q+W. Both are acceptable forms, depending on how the system is defined! We chose to focus on only one definition here to limit the confusion. Crash Course Engineering is produced in association with PBS Digital Studios: https://www.youtube.com/playlist?list=PL1mtdjDVOoOqJzeaJAV15Tq0tZ1vKj7ZV *** RESOURCES: Çengel, Yunus A., and Michael A. Boles. Thermodynamics: An Engineering Approach. 8th ed., McGraw-Hill Education. http://web.mit.edu/16.unified/www/FALL/thermodynamics/notes/node15.html https://www.livescience.com/50776-thermodynamics.html https://www.khanacademy.org/test-prep/mcat/chemical-processes/thermochemistry/a/endothermic-vs-exothermic-reactions https://www.wired.com/2014/12/whats-inside-hot-hands/ http://www.chemistryislife.com/the-chemistry-of-hand-warmer http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/thereq.html https://www.grc.nasa.gov/www/k-12/airplane/thermo0.html http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/firlaw.html http://www.physicsclassroom.com/class/energy/Lesson-1/Kinetic-Energy http://www.physicsclassroom.com/class/energy/Lesson-1/Potential-Energy https://www.realclearscience.com/blog/2014/01/the_physics_of_getting_punched_in_the_face.html http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/inteng.html https://www.britannica.com/science/internal-energy https://www.nuclear-power.net/nuclear-engineering/thermodynamics/thermodynamic-processes/isochoric-process-isometric-process/ https://www.britannica.com/science/enthalpy http://pillars.che.pitt.edu/student/slide.cgi?course_id=12&slide_id=35.0 https://courses.lumenlearning.com/boundless-physics/chapter/the-first-law-of-thermodynamics/ https://www.khanacademy.org/science/biology/energy-and-enzymes/the-laws-of-thermodynamics/a/the-laws-of-thermodynamics http://www.ftexploring.com/energy/first-law_p2.html https://water.usgs.gov/edu/hyhowworks.html *** Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse Thanks to the following Patrons for their generous monthly contributions that help keep Crash Course free for everyone forever: Mark Brouwer, Erika & Alexa Saur Glenn Elliott, Justin Zingsheim, Jessica Wode, Eric Prestemon, Kathrin Benoit, Tom Trval, Nathan Taylor, Divonne Holmes à Court, Brian Thomas Gossett, Khaled El Shalakany, Indika Siriwardena, SR Foxley, Sam Ferguson, Yasenia Cruz, Eric Koslow, Caleb Weeks, Tim Curwick, D.A. Noe, Shawn Arnold, Ruth Perez, Malcolm Callis, Ken Penttinen, Advait Shinde, William McGraw, Andrei Krishkevich, Rachel Bright, Mayumi Maeda, Kathy & Tim Philip, Jirat, Eric Kitchen, Ian Dundore, Chris Peters -- Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support Crash Course on Patreon: http://patreon.com/crashcourse CC Kids: http://www.youtube.com/crashcoursekids
