Energy & Chemistry: Crash Course Chemistry #17
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Grumpy Professor Hank admits to being wrong about how everything is chemicals. But he now wants you to listen as he blows your mind with a new sweeping statement: everything (yes, really everything this time) is energy. What?! This week, Hank takes us on a quick tour of how thermodynamics is applied in chemistry using his toy trebuchet as an example, because he is a proud nerd. -- Table of Contents Everything Is Energy 0:00 Forms of Energy 1:07 Potential Energy 2:11 Chemical Energy 1:55 Energy Is Constant & Law of Thermodynamics 2:49 System & Surroundings 5:03 Energy Transfer 4:57 Work 3:25 Heat 4:05 Trebuchets 0:48 -- Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashC... Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support CrashCourse on Subbable: http://subbable.com/crashcourse
Comments
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he sounds like Dr. Well from the Flash. :D
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You lost me at 0:00
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I kept seeing the "No edge" thing and it made me think. Imagine being one of the first humans to using a device that bends space time, allowing us to conceptually "teleport" and traveling pass the known edge of the universe (the point at which mass has not yet traveled far enough from the center of the universe, that point being the origin of the big bang). You'd be able to see the entire universe... Go even farther... to the points where the first photons ever created haven't even reached and literally watch the creation of the universe as it happens before your very eyes...
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Actually work is a change in kinetic energy. It's a common misconception and a poor definition of work to that it is simple a force over a distance
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+Mc Kenna
CRASH COURSE MOTTO:
Anything makes sense if said at a high rate of speed.
Sense = Speed ^4
So TRUE! -
That was the hardest I've laughed in a while...best one so far
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This guy teaches me two weeks worth of lectures in a few videos better than my Chem professor!
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burn it
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Mentioned several times in this video 'energy is stored in bonds' .
This isn't true. You need to add energy to break bonds, and energy is released when bonds are formed. There is no energy stored in the bonds themselves.
Mix H₂ and O₂ nothing happens. Add a spark, enough to break some O₂ and H₂ bonds, and the ions will make H₂0 and release more energy than was needed to break the bonds, that causes a chain reaction. BOOM. -
ha your trebuchet is on fire at 7:50
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I have my own little phrase which also isn't completely accurate, but very amusing:
"Everything is chemicals... unless it's radiation." -
Thank you crash course, your videos in chemistry, physics and history helped me finish high school, after many years of boring myself, getting teachers and my parents mad, i decided to be home schooled, apparently all I needed to A those tests were your videos, so again THANK YOU!
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what in the name of "Willard Gibbs" lol
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Burn the damn trebuchet
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"and im just making stuff up"
We here at crash course thank you for getting smart with us and as always we hope you learned somehing---HANK -
man you are so funny, you make everything more interesting, thanks for this great video.
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Lower case q,
YUP lower case q,
DEAL WITH IT -
Who realized the fire at the end??
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I got a z in my science test because I was sleeping😂😂😂
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The soft 'because I'm a nerd...' 😂😂
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