SImple and clear. I must have learned all this in high school, but until seeing your video I could not explain it. Excellent video. Probably not for the the complete novice, but excellent for a student studying the subject.
I started working in architecture 8 mos. ago and when I first started, the detailed drawings of how specific assemblies go together looked so alienesque. I've been learning that a building goes together the way it does largely to mitigate the intrusion of different environmental forces like moisture, sun, and wind that work to deteriorate a building. The more effective a bldg is at resisting these natural forces(due to being assembled correctly with appropriate materials), the less money the owner/operator of the building has to pay over time in maintenance/repairs. When you own a home, you essentially operate a building and part of being able to afford a home not only includes paying the mortgage and taxes, but also the cost of maintaining the home itself. With that being said, certain parts of a roof is designed the way it is not for aesthetics, but due to surface tension and capillary action that wants to drive water into the building that must be repelled by thoughtful design...that can also look nice as a secondary function. Before starting architecture, I had no idea how much building science informs design.
How convenient is it, that I missed the chemistry lecture explaining these IMF relationships for liquids (don't ask me how, it's embarrassing), just to see Professor Dave upload a detailed concise video explaining them the very next day? You're my favorite, Dave.
When I was taking my General Chemistry courses I was *heavily* watching chemistry videos on UA-cam (2-3 hours a day for about a year: you, Bozeman Science, Tyler Dewitt, The Amoeba Sisters, Khan Academy, Cody's Lab, Nurdrage, NileRed, etc.) and saw just about every one of your older chemistry vids. Was wanting to maintain and build on my chemistry knowledge (Gen-Chem was my science elective for my Associate degree in Business and thinking about going back to pursue a more advance science degree) so it came as quite a shock when I saw the new haircut... I suppose it cuts down the countless "Thank you chemistry Jesus!" comment that I kept seeing on you vids. =P This vid really added to my knowledge since my Gen-Chem courses did not have any detailed emphasis on these liquid properties, they were covered briefly in lecture, but was never put in a quiz or test.
While watching I thought "what about surface tension"? Answered. Then I thought "what about water going up a tree"?. Again, answered. You have a knack for providing great examples. Thank you.
Could someone help me with two questions? 1) Why does not water want to reduce the amount of hydrogen bonding occurring by increasing the surface area? 2) Why does to maximize hydrogen bonding let the system to sit at the lowest energy possible?
In my country we learn that water has high viscosity. N.B. Viscosity is the measure of how a fluid flows easily. Please, could you define it for me more?
hi! I've been watching your videos since we discussed quantum numbers. As we are proceeding I was shocked you cut your remarkable hair hehe. But then thank you for your help!! Continue teaching, Sir Dave!
Very informative video, thanks. Do you have time to answer a question for me? I have a small vessel filled with water. A thin tube (1.5mm inner diameter) hangs an arbitrary distance below the surface and the top is attached to a valve that allows me to release ink into the water. When the valve is open, ink flows freely. When I close the valve, a vacuum is created at the top of the tube, so the flow of ink stops. However, through what I assume is capillary action, water from the vessel is pulled into the tube, apparently displacing ink, which then leaks into the vessel. This continues until all of the ink in the tube has leaked out. My question is, is there any way to prevent this leakage from happening? I cannot change the viscosity of either the ink or the water. The tube could be modified if that would help, but not to the extent of using a much larger diameter tube. I hope you find this question interesting and I'd be most appreciative if you can answer it. Thanks very much!
Density is related to concavity as radiation is related to convexity? A gas through a viscous material presses away from gravity convexity to get to a more concave state in the surrounding gas. Take schampo and watch air bubbles move away from centre of earth at speeds dependent on bubble size.
there is an android app play market called Viscosity calculator (by Tarbanov) that calculates dynamic viscosity of water solutions in respect to temperature and salinity
Hey Dave! Thanks for the video :). I was wondering if you could answer a question. If I put water in a non-polar container, such as plastic, would that mean the meniscus would become convex since the cohesion is greater than the adhesion? P.S. I as asking this because when I google this situation it says that the meniscus would be neither. It says it would be flat?!
short haired dave caught me so off guard i literally yelled "WOAH WHO IS THIS" 😭😭😭😭😭😭 Jokes aside,,, beautiful vid again U r saving my love for science sobs
Hello Professor Thank you for this wonderful and amazing explanation ... I have a question please answer it and I want a specific answer What is the reason for(( the curvature )) of the water surface inside the test tube in the form of an arc down? Is it because of the strength of the water molecules and their benefit to the bottom or not have a relationship? I hope to find the answer near you thank you very much
An excellent demo----and not ruined by background music. About perfect!
This called "quality content". Thank you so much you saved my day!
This is really the most helpful explanation I've ever come across
SImple and clear. I must have learned all this in high school, but until seeing your video I could not explain it. Excellent video. Probably not for the the complete novice, but excellent for a student studying the subject.
I started working in architecture 8 mos. ago and when I first started, the detailed drawings of how specific assemblies go together looked so alienesque. I've been learning that a building goes together the way it does largely to mitigate the intrusion of different environmental forces like moisture, sun, and wind that work to deteriorate a building. The more effective a bldg is at resisting these natural forces(due to being assembled correctly with appropriate materials), the less money the owner/operator of the building has to pay over time in maintenance/repairs. When you own a home, you essentially operate a building and part of being able to afford a home not only includes paying the mortgage and taxes, but also the cost of maintaining the home itself.
With that being said, certain parts of a roof is designed the way it is not for aesthetics, but due to surface tension and capillary action that wants to drive water into the building that must be repelled by thoughtful design...that can also look nice as a secondary function. Before starting architecture, I had no idea how much building science informs design.
Thx professor! when I get my high school degree you'll definitely be one of those who has helped. And helped a lot!
thank you for the very simple explanation. I am an engineer and used the concepts for years but I understood completely now.
How convenient is it, that I missed the chemistry lecture explaining these IMF relationships for liquids (don't ask me how, it's embarrassing), just to see Professor Dave upload a detailed concise video explaining them the very next day?
You're my favorite, Dave.
11 ua-cam.com/channels/gnq8tH5o-X3byKaMsuwqHA.htmlvideos
Of which country are you
how
bro that is very embarrassing. imagine missing a class
@@siddarthbatchu9978💀
Pacing is perfect and it goes in a very logical way. Thank you!
Dude, I love the content you show.
where did your long hair go, u look less like chem jesus now
🤦🙄
😢
Fr
@@prosp3421 Hater fr
Your intro is the best part of the video!
Saying Tnx only can not express my real feeling Sir you are just a real proffesor of SCIENCE 😍😍😍😍😍😍😍😍😍😍😍😍😍😍😍
that was such a beautiful concise video. just what i needed the day before an exam
Omggg my teacher took whole half month to explain these but i wasn't clear, and after your content i am soo clear 😵💫
When I was taking my General Chemistry courses I was *heavily* watching chemistry videos on UA-cam (2-3 hours a day for about a year: you, Bozeman Science, Tyler Dewitt, The Amoeba Sisters, Khan Academy, Cody's Lab, Nurdrage, NileRed, etc.) and saw just about every one of your older chemistry vids. Was wanting to maintain and build on my chemistry knowledge (Gen-Chem was my science elective for my Associate degree in Business and thinking about going back to pursue a more advance science degree) so it came as quite a shock when I saw the new haircut... I suppose it cuts down the countless "Thank you chemistry Jesus!" comment that I kept seeing on you vids. =P This vid really added to my knowledge since my Gen-Chem courses did not have any detailed emphasis on these liquid properties, they were covered briefly in lecture, but was never put in a quiz or test.
Very great video understood everthing. Clear and concise info given
He knows a lot of science stuff professor Dave explains
Great video! My students found it very informative!
Thank you for making our school life easier. Keep going!!!
Perfect and Simple presentation. Thank you
Can you make a video about rheology (shear stress, shear thinning, shear thickening, ...) ?
Awesome video btw!
I like your new look professor. Thanks for your videos, they help us a lot.
Thank you very much...You give the best practical explaination on youtube
FANTASTIC EXPLANATION of several aspects of liquids. AWESOME!!! ❤
Thank you for this lesson Prof
Okay this is the best video I've seen on this topic
Thank you tons!!
He knows alot science stuff professor Dave explains ❤️
I hate chemistry so much but you make it bearable thank you
thank goodness i have a science test today thank youuuu
thank you a lot I have exam and I can't understand from my teacher . you save me thank you prof.
Wow this video is so wonderful and educative to learner's
👏👏👏👏👏👏
Thanks a lot 😊 understood better than the textbook ☺️
Phenomenal work♥️
While watching I thought "what about surface tension"? Answered. Then I thought "what about water going up a tree"?. Again, answered.
You have a knack for providing great examples. Thank you.
Itz capillarity
11 ua-cam.com/channels/gnq8tH5o-X3byKaMsuwqHA.htmlvideos
Covid 19 GMA news 70
finally I could understand all about viscosity
i needed this video for my science assignment like a month ago and i only got B's, thanks.....
SUBCRIBED because the example is too perfect
11 ua-cam.com/channels/gnq8tH5o-X3byKaMsuwqHA.htmlvideos
and he comes to save my grades once again!
I have to say this is very interesting as I am a food science student water is very basic and important ingredient. Thank you for explaining
Best teaching 👊👊👍😘😍
TOO EASY AND SIMPLE.I HAVE A GOOD REASON TO STUDY NOW
Could someone help me with two questions?
1) Why does not water want to reduce the amount of hydrogen bonding occurring by increasing the surface area?
2) Why does to maximize hydrogen bonding let the system to sit at the lowest energy possible?
Thanks a lot professor Dave for such easy and wonderful explanation
11 ua-cam.com/channels/gnq8tH5o-X3byKaMsuwqHA.htmlvideos
In my country we learn that water has high viscosity.
N.B. Viscosity is the measure of how a fluid flows easily.
Please, could you define it for me more?
Great explanation
you deserve more 10 million subscribers
hi! I've been watching your videos since we discussed quantum numbers. As we are proceeding I was shocked you cut your remarkable hair hehe. But then thank you for your help!! Continue teaching, Sir Dave!
Nice explanation ❤
the best intro ive ever seeen
Thank you sir because of you I understud such tough concept 😭😭😭😭😭🙏🙏🙏🙏
Thanks for the visual explanation
This was such a great video!!
Thank you, chemistry jesus for saving me
Very informative video, thanks. Do you have time to answer a question for me? I have a small vessel filled with water. A thin tube (1.5mm inner diameter) hangs an arbitrary distance below the surface and the top is attached to a valve that allows me to release ink into the water. When the valve is open, ink flows freely. When I close the valve, a vacuum is created at the top of the tube, so the flow of ink stops. However, through what I assume is capillary action, water from the vessel is pulled into the tube, apparently displacing ink, which then leaks into the vessel. This continues until all of the ink in the tube has leaked out. My question is, is there any way to prevent this leakage from happening? I cannot change the viscosity of either the ink or the water. The tube could be modified if that would help, but not to the extent of using a much larger diameter tube.
I hope you find this question interesting and I'd be most appreciative if you can answer it. Thanks very much!
Density is related to concavity as radiation is related to convexity? A gas through a viscous material presses away from gravity convexity to get to a more concave state in the surrounding gas.
Take schampo and watch air bubbles move away from centre of earth at speeds dependent on bubble size.
11 ua-cam.com/channels/gnq8tH5o-X3byKaMsuwqHA.htmlvideos
This video helped alot, thank you sir 💕.
Thankyou professor Dave ily so much!!!
can you explain why water doesn't fall from an inverted tumbler if we place a strainer at the mouth of the inverted tumbler??
Thank you Mrs
Thanks for this explanation
11 ua-cam.com/channels/gnq8tH5o-X3byKaMsuwqHA.htmlvideos
You made everything look so simple ...I hv been searching for a video like this...👍👍
u make chemistry interesting
Perfect explaination
Great Explanation..!
Sir, I had one doubt. What are polar and nonpolar surfaces?
Professor, is there any substance that can easily move through viscous liquids.
there is an android app play market called Viscosity calculator (by Tarbanov) that calculates dynamic viscosity of water solutions in respect to temperature and salinity
Awesome work Dave!!
can you explain why surface tension formula is y = F/2L? why there's 2 in it?
Good one Professor Dave.
Damn I finally understood all...thanks bro
Tx for the update
Teaching method is very cool
11 ua-cam.com/channels/gnq8tH5o-X3byKaMsuwqHA.htmlvideos
Hey Dave!
Thanks for the video :). I was wondering if you could answer a question. If I put water in a non-polar container, such as plastic, would that mean the meniscus would become convex since the cohesion is greater than the adhesion?
P.S. I as asking this because when I google this situation it says that the meniscus would be neither. It says it would be flat?!
A convex surface will be formed with decreased level of height than the rest of the liquid
Thank you sir iam in kerala
Thank you
short haired dave caught me so off guard i literally yelled "WOAH WHO IS THIS" 😭😭😭😭😭😭 Jokes aside,,, beautiful vid again U r saving my love for science sobs
Professor dave i really appreciate your work its easy😘😌😌😌😌😌😊😊👍👍👍👌👌👏👏
thank you
Hello Professor
Thank you for this wonderful and amazing explanation ...
I have a question please answer it and I want a specific answer
What is the reason for(( the curvature )) of the water surface inside the test tube in the form of an arc down?
Is it because of the strength of the water molecules and their benefit to the bottom or not have a relationship? I hope to find the answer near you
thank you very much
This precise question is answered quite thoroughly in this video.
11 ua-cam.com/channels/gnq8tH5o-X3byKaMsuwqHA.htmlvideos
Does surface tension also resist something trying to exit a blob of fluid?
Wow thank you..
You helped me a lot.❤️
Professor dave is the man 🤗😎
I like your hair these way, it goes with you
Well explained! Respect!
Why adhesive force is stronger than cohesive when water is put in a glass tube although glass is a non polar substance.
Very great thank you so much 💚💜
@5:40 surface tension tends to minimize surface area right? but video says tends to increase surface area.
yes it minimizes it, so energy is required to increase it, by say, puncturing the surface.
11 ua-cam.com/channels/gnq8tH5o-X3byKaMsuwqHA.htmlvideos
Does surface tension keep the particle separate? What is the definition of surface tension?
Sir! Why water in glass tube has concave meniscus? while due to hydrogen bonding in water molecules cohesive foces should be strong.
the interactions with the silicates in the glass are even stronger
Thank you so muchh sir
Thank you so muchhh!!!
So good, thank you
Thank you Prof!
Thank you, sir!
Thank you sir
Good explanation.. Keep it going
11 ua-cam.com/channels/gnq8tH5o-X3byKaMsuwqHA.htmlvideos
Love from India 💕
Your a magician