This is what happens when a physics student tries to explain something to his stoned friend.

lol the guy in the background

i love the way this guy teaches. he really holds my attention. thanks Doc!

These videos are excellent for cramming... short and straight to the point...

I prefer to call it liquifying, because melting sometimes makes my students think of water. But I agree with you in principle.

Hi, i would just like to tell you that you made a mistake when you labeled boiling and evaporation at the same place. its quite a common error, but boiling and evaporation are actually two different things. Evaporation takes place at a very large range of temperature compared to boiling that only takes place when the temperature reaches the boiling point. For example if it were to rain at about 6pm, in countries like where i am (Kenya) where the temperature is not too low (around 20C at night), then in the morning we would find the water to have vaporized, how if it wasn't 100c? this happens because the water molecules at the surface tend to jump out of the liquid surface due to the kinetic energy. Here we can say: Evaporation only takes place at the surface of the liquid at a large temperature range where as boiling takes place at any area of the liquid (reason for bubbles) and at only a certain temperature (boiling point) depending on the liquid. Therefore during evaporation the temperature of the liquid can change but not in boiling.

Hi 1 year ago I was doing my AS and ur videos helped me get an A and a year later, here I am studying similar things are referring to the same amazing videos of yours. Many thanks Doc !!

Heat is thermal energy. I am adding heat but not changing the temperature. Distinguishing heat from temperature is sometimes a tricky process, but it's SO important to understand.

do you wanna yeah? do u have a yeah? yeah. XD

out of all the educational channels of watched, this is the first one I've subscribed to. As my former history teacher says, Good Stuff!

Wow, you are amazing!! I love your passion for physics and science in general! Great vid! To the point and phenomenal. ☺️

love the peanut gallery remarks in the background

Youre informative and entertaininng at da same tym

"like 10?" LOL

I wish I would have had a teacher like you back in the day. Thanks.

I hope you're a teacher outside KZfaq as well. :)

“... I don’t remember that” (no pause between comments) “YEAH YOU DO.”😂😂

great video :)..... you explain so much better than the teachers in my school, they barely speak good English :p

Great instructing video for my physics exam next week :)

very good >> no words... great way of giving a lecture... thanks DOC S.

Thanks for this, very informative. Helped me study for my oceanography midterm

Very good information presented in a simple way. Thumbs up.

Will is my favorite human being.

After 9 years, I'm watching this video cause now I'm having this concept in my school 😶 Good explanation and Amazing video 😊

thank you for this! it’s really helpful to visualize this

Great speaking voice :)

wow you teach awesome I love it, i'm definately subscribing

Just saw this now. Evaporation and boiling are two separate things. We're studying these differences in our curriculum, I suggest you annotate a correction, cuz we don't want others viewing this to get confused. Great video tho! :)

+Doc Schuster what does the area under the ladder shape like line represent?

Very helpful and entertaining, thank you.

I love your energy.

Lovely father and son chemistry lesson

This was great! I just wish some of the implications of condensing a lot of water vapor -- with the associated return of the **2.26 x10^6 J/kg of heat** -- had been woven into it. For example, the creation of an average-size cumulus cloud (made of liquid droplets from condensing of vapor onto nucleation aerosols) = the release of how much heat? A: A well-known meteorology textbook has this at about 1 Hiroshima-sized nuclear detonation. For just one cloud. At any rate, a _lot_of heat. I wonder what would happen if we gave our atmosphere more water vapor, say, by heating it up somehow? Oh wait, we don't have to wonder, it turns out we have been doing this very experiment for sometime now. More water vapor (in absolute, not relative terms) means more latent heat available to storms (oh, and more moisture too).

Disclaimer: It's 1/14/20 and I haven't reviewed all 152 existing comments. The bottom or 'x' axis should be re-labeled 'Time.' That is, the authors stated the heat input was a constant value. So you're simply graphing the temperature of the water over time. You're welcome. Significantly, this demo nicely illustrates why the "Blue Ocean Event"-- when most Arctic ice has melted-- will be game over for most life on earth. Humans included. You're not welcome.

great presentation and very entertaining

hell yes! I agree and was just watching HIMYM which makes this so much better!

Waaaw got many things. Thanks for the vedio

Lmao the guy that said you'd need 10 apples to melt 1 kg of ice was totally clueless.

People like these help me get through homeschooling 😂

This video was really helpful :)

My sloppy handwriting's secret code for the word: Liquifyin' or "turnin' into a liquid"

It helped alot thank u

Amazing

state any suggestions to improve the experiment measurement of latent heat of evaporation

If only my teacher was like this...

I have a question. Steam at 100 degree C is injected into a melting ice block of the same mass. What is the final temperature of the mixture?

hey doc you are amazing. thousands likes and subscribes may you get. will help you achieve that.

subscribed!

Nice vid

Although we see massive ice melt in the arctic and antarctic as icebergs the size of Delaware are breaking off the continental ice sheet, the latent heat of fusion is the reason that we don't see dramatic changes in global temperature. The ice can only absorb so much heat energy. As it melts, the temperature buffering capacity of the global ice sheets decreases, leading to exponential rise in the change in global temperature. Yes, global mean temperature is rising, faster and faster. Thermodynamics never lie.

i should be paying u than my physics instructor...

What is the state of the substance between the Liquid Melting.

Very good

Melting called Heat of Fusion, the amount of head absorbed by the system to go from solid to liquid. The video indicated the fusion goes from liquid to solid and that's incorrect.

boiling and evaporating are very different.

Slick. I think we'd get along.

Very helpful !

How do you guys know how long to draw the horizontal lines. I dont get it someone please i'm begging you if you are readig this please help me.

You have written "fusion" and "solidification" in the same direction. But actually they both are opposite of each other . Fusion is change of solid into liquid however solidification is the change of liquid into solid.

So Fusion can be related to cooling also ?

That General Patton joked deserved better :)

You teach good

bro i love thissss....really gets my attention finally a teache who teaches in english......🤣🤣🤣🤣🤣🤣🤣🤣other be teaching in chinese i guess.....

Damn this thing 8 years old and I got the balls to say that your "red" marker is orange

You make me less terrified about my test

can i solve for heat required without mass given?

fusion and melting is the same. and also evaporation is not the same is boiling. boiling occurs in the temperature where the vapor pressure is equal to external pressure (stove), and once the external pressure overcomes the vapor pressure the molecules of water will evaporate.

I like this guy

You misspelled liquefyin'.

Thx!!!

Hi really loved your video and the guy in the background.. his voice is so cute xD

What was P=I^2R?

Liquid gains heat in order to change to gas, which means that Q is positive (in Q=mL) What is the sign of Q when gas changes back to liquid? Is it negative since heat is lost?

😂I can't tell if the other guy is being serious of is just there for comedic relief

I have a ski jacket that claims to harness transition and the latent heat capacity of some undisclosed molecule to regulate the heat of the wearer to around comfortable temperatures. Experientially it's a great ski jacket and I never get too hot or cold but I'd be interested to understand what molecule would be at the transition between liquid and solid and capable of being contained within some other layer such that the wearer didn't feel any change in the jacket. The material is documeted here: www.schoeller-textiles.com/en/technologies/schoeller-pcm.html Is this a lot of nonsense or is it using the principles described in your video?

U rock

In my text book it given 3.36 X 100000000. When I Google it says 3.34 X 100000000. In ur video it says 3.35 X 100000000. Which 1 is the correct latent heat measure for ice of 1kg.

Hey who's the guy with you?

Gd explanatiom

I think you got the HEAT line and the TIME line mixed up.

"oh u wanna , yeaah"

Thnks

i like how the guy played the stupid part, it made me laugh Shut up!

is it just me or does he sound a little like barney stinson ???? anyway i love your vids

like for the teacher :p

solve that sucker

what happens when i starts from the zero degree?.........does the graph also starts horizontally for a while like this...........and thanks in advance.

At 1:56, why did ya say 'shut up'? What did the other guy say?

That guy in the background :-P :-D!!!!!

Labeling the RHS as steam is wrong. Steam is still visible water. Should have been labelled as water vapour, which cannot be seen, but which surrounds us in various quantities in every day life. Other than that, I like it.

v help[ful

your voice remind me of Deadpool +_+

where does your friend buy his weed from?

their dynamic tho

ME GUSTA...!

Isn't evaporation different from boiling?

2020, anyone?

he sounds like John Stamos

Actually, I believe you are heating the ice by adding thermal energy. You're not adding heat.

It's so annoying when they use Celsius instead of Fahrenheit