Kinetic Theory and Phase Changes: Crash Course Physics #21

How the heck do we map out a planet without oceans? NASA had to figure that out when we sent the Mariner 9 probe to Mars. There's some tricky, yet fascinating science behind all of it! In this episode of Crash Course Physics, Shini talks to us about sea level, kinetic theory, and phase changes.

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[crashcourse]

We made quiz questions to help you review the content in this episode! Find them on the free Crash Course App!

[bio_]

These kinds of channels are much more interesting than school

[PeacefulAnxiety]

Great episode! It is a shame that viewership is so low for Physics.

[bolerie]

I like how everyone demanded CC Physics, but now that it's here, it gets the fewest viewers of all the series that are running at the moment :/

[DocSchuster]

At 4:50, Shini claims that at higher pressures, real gases tend to have a bit less volume than ideal gases. This is incorrect. The compression violates the assumption that the molecules have no inherent volume, so the real gases have MORE volume than the ideal prediction. She's right about the too cold situation. It's interesting that the direction of the deviation from the ideal depends on whether it's too tight or too cold!

[Victoria-ypeb]

I absolutely agree, a math series with the ease and casualness of Crash Course, would be monumentally beneficial for a lot of students across the world. Starting at Algebra 1 and Geometry (for an intermediate Mathematics Series) Algebra 2- Trigonometry- Calculus AB - Calculus BC- Statistics ( for an advanced Mathematics Series)

[AdrianaDonado]

Thank you so much for these videos. I'm actually seeing heat and waves at college right now, and this is very helpful

[varana]

In general, this is great... but please, slow down a bit. :) Especially when reading formulae. Also, please back up calculations like the one starting at 3:10 with a visual aid. I get the 300 K, but even though I'm quite proficient in English (which is not my native language), I completely black out at the number that follows, which means that while I still try to process this number, I'm not focused on the equations that follow, so I miss a good deal of those as well, and so on. It's on screen later on (from 3:36) - for about two seconds, so I almost certainly have to rewind because I missed the opportunity to pause the video while it's there.
Even though I liked the math-y parts of physics, and have no problems understanding the calculations in principle, and know English well enough to understand these videos, the rapid-fire delivery makes it unnecessary hard to watch them.
But generally: please keep doing them. :)

[NaquadahEOD]

Kinetic Theory and the Phase Changes would be a pretty awesome band name.

[anotherdoseyt]

hey do you think you could you can start an advanced maths series

[CHAS]

Excellent series...totally coherent and lucid. Thanks for posting.

[romanfox]

Wow. That was really cool to see a graph explaining dry ice.

[noranel-sherif]

Another Thankyou.. Loved the Beginning and Ending Story - chapeau to the application "choice" of the theory

[cosmicfool]

One thing that struck me earlier, though it is more a chemistry thought.

Does a single atom have a state? Can it be a liquid, a gas, or a solid, without other atoms of its kind to interact with?

[borismatesin]

Please feed your proof-reading team stronger coffee, they keep spelling "kinetic" as "kenetic" :D

[enkiimuto]

That was neat, I always wondered how did they measure altitude on other worlds.

[arathisuraj]

This series is great for a quick revision or basic intro to Physics 1 and 2. Pity it doesn't have more viewers...

[jasonpatterson]

6:28 Critical pressure is NOT the pressure at which a substance remains a liquid regardless of temperature. There is no such pressure, as we can always exceed the critical temperature and create either a gas or supercritical fluid. Critical pressure is the pressure at which a substance remains liquid at the critical temperature. The (x, y) coordinates of the critical point are (critical temperature, critical pressure.)

[hunterkubat]

a lot to grasp, but a god send- thank you

[anastatianeromanijournalis]

Thank you for your time and consideration in this matter