Converting Between Temperature Scales (Celsius, Fahrenheit, and Kelvin)

  Рет қаралды 132,100

Professor Dave Explains

Professor Dave Explains

7 жыл бұрын

If you're American, you're familiar with the Fahrenheit scale, so 30 degrees is cold and 100 degrees is hot. But in the rest of the world, nobody uses this scale! They use Celsius, and to them, 30 is pretty darn hot. Furthermore, scientists use Kelvin, and to them, 30 is so cold it would kill you dead! We'd better learn how to convert between this different temperature scales, don't you think?
Watch the whole General Chemistry playlist: bit.ly/ProfDaveGenChem
Organic Chemistry Tutorials: bit.ly/ProfDaveOrgChem
Biochemistry Tutorials: bit.ly/ProfDaveBiochem
Biology Tutorials: bit.ly/ProfDaveBio
Classical Physics Tutorials: bit.ly/ProfDavePhysics1
Modern Physics Tutorials: bit.ly/ProfDavePhysics2
Mathematics Tutorials: bit.ly/ProfDaveMaths
EMAIL► ProfessorDaveExplains@gmail.com
PATREON► / professordaveexplains
Check out "Is This Wi-Fi Organic?", my book on disarming pseudoscience!
Amazon: amzn.to/2HtNpVH
Bookshop: bit.ly/39cKADM
Barnes and Noble: bit.ly/3pUjmrn
Book Depository: bit.ly/3aOVDlT

Пікірлер: 84
@bipl8989
@bipl8989 9 ай бұрын
Easy to do in your head C to F. 2 x C, -10%, +32 F to C C-32, +10%, ÷2 C to F C= 10 10x2 =20 -10% = 18 +32 = 50F
@aquacandela3705
@aquacandela3705 2 жыл бұрын
I'm taking a chemistry class right now on this subject, but after reading the chapter over and over I couldn't understand so many things such as WHY this (32) appears in the equation. The textbook doesn't seem to make it clear and is confusing, but now after only 2:48 mins into this video I understand why it's there and it's so simple. This was frustrating me to no end, this is exactly what I needed!
@carultch
@carultch Жыл бұрын
There is no physical reason to why it is 32 of all possible numbers. It's just how we define the modern version of the Fahrenheit scale. Fortunately, it is only 2 digits that we have to deal with.
@bipl8989
@bipl8989 9 ай бұрын
It's just an offset to the underlying linear conversion of F = 9/5 x C Plot a bunch of dots on graph paper using f = 9/5 x C , C on the X axis, F on the Y axis. Choose a bunch of values for C and calculate f for each value of C Draw the line through all the dots. Now add 32 to each dot. Draw a line vonnecting all those. That new line shows all the corresponding values of F.
@bipl8989
@bipl8989 9 ай бұрын
​@@carultchThere is a physical reason. 0°C = 32°F Both the temperature of ice water.
@carultch
@carultch 9 ай бұрын
@@bipl8989 You are missing my point. I'm saying there is no reason other than arbitrary convention that 0 C = 32 F. What exactly defines 0 F, is lost to history, as no one has ever been able to reproduce Fahrenheit's original recipe for 0F.
@artandcraftwithbt
@artandcraftwithbt 7 ай бұрын
THANK U SIR FOR EXPLAINING THIS IT HELPED A LOT ❤❤
@soyelprofeabel
@soyelprofeabel 2 жыл бұрын
The best explanation, thanks a lot
@jessefigueroa2682
@jessefigueroa2682 Жыл бұрын
Dang I didn't know moistcr1tkal made educational videos now. Great jingle.
@jerinjaison5580
@jerinjaison5580 3 ай бұрын
This man is really really great!!
@EraoErba
@EraoErba 13 күн бұрын
Thank you professor Dave
@tasmiaferdous4945
@tasmiaferdous4945 3 жыл бұрын
thank you very much sir !!
@EraoErba
@EraoErba 13 күн бұрын
Irano Erba from Ethiopia thank you so much our teachers
@jaeljefinaj5246
@jaeljefinaj5246 3 жыл бұрын
Thank you ❤
@diepduong6637
@diepduong6637 2 жыл бұрын
very good hope you made more video about science and physic
@Sunrisestarry
@Sunrisestarry Жыл бұрын
Thanks so much this is easy to remember
@Gracekutepov671
@Gracekutepov671 2 жыл бұрын
Thank you so much I learned a lot also I really needed it thanks
@didi_1781
@didi_1781 2 жыл бұрын
Thank you!
@degudebebe5535
@degudebebe5535 6 ай бұрын
Thank you very much teacher !!!!!
@betteana
@betteana 8 ай бұрын
I LOVE YOU PROFESSOR DAVE
@muqsitjalal2225
@muqsitjalal2225 2 жыл бұрын
Thank you sooo much for your videos proffessor Dave, honestly ,it helped me a lot during online class BTW, 3:31 Los Angeles is the winner😜
@beatami7183
@beatami7183 3 жыл бұрын
Thanks alott
@randomarun2950
@randomarun2950 7 жыл бұрын
I never knew this about this, thanks! I know this now.
@javeedairphaan6076
@javeedairphaan6076 2 жыл бұрын
Thank you so much. Love from India
@doyin2575
@doyin2575 4 жыл бұрын
Thank you so much for the clarification.......thumbs up
@abdalazizsawwan328
@abdalazizsawwan328 7 жыл бұрын
Thanks professor !
@galactorsus_i.n.c
@galactorsus_i.n.c 2 жыл бұрын
i get why kelvin is there but USA should really just use Celsius instead, well they should start making the change to Celsius bc ik it needs time to make a change like that
@dogbarbill
@dogbarbill 3 жыл бұрын
Apparently Professor Dave missed class when the conversion formula for a calculator was covered.
@aoi1640
@aoi1640 3 жыл бұрын
I'm here to Guess how hot or cold is it This is just about Fahrenheit, Celsius and Kelvin
@aditiverma1443
@aditiverma1443 Жыл бұрын
Thank youuu so muchh..! All my doubts are clear now! My exam is tmrw 😭 I hope I will score 😅 full
@noone12323
@noone12323 Жыл бұрын
What's your score 🧐🧐
@aditiverma1443
@aditiverma1443 Жыл бұрын
Unfortunately it was 50/80
@pravin25
@pravin25 7 ай бұрын
​@@noone12323 my score is -273.5 K dayummmmm
@cdfactory
@cdfactory Жыл бұрын
Where did you get that shirt
@spacechip3386
@spacechip3386 2 жыл бұрын
beautiful theme song.
@tdgtwo850
@tdgtwo850 2 жыл бұрын
Did your geometry or science teacher took you here?
@giovannimariotte4993
@giovannimariotte4993 4 жыл бұрын
Thank you for this videos
@electricjeel6706
@electricjeel6706 3 жыл бұрын
This and a song about converting in the metric system were in the same Google form. Im in the 8th grade and I had to watch a song about converting in the metric system... The song actually really helped.
@AnilKumar-is7wm
@AnilKumar-is7wm 2 жыл бұрын
Could you please make a video on how is heat transferred
@ProfessorDaveExplains
@ProfessorDaveExplains 2 жыл бұрын
check my classical physics playlist
@AnilKumar-is7wm
@AnilKumar-is7wm 2 жыл бұрын
Ok
@justjerm1823
@justjerm1823 3 жыл бұрын
Dude the real reason is why do I have to convert? Why can’t I just understand Celsius like the rest of the world. I love America 😒
@carultch
@carultch Жыл бұрын
You'll still need to convert between Celsius and Kelvin, even if you do live in a country that uses the metric system. Few (if any) countries would routinely use the Kelvin scale in weather reports, everyday speech, and on most devices available to the general public. No one wants to think in 3-digit numbers for common temperatures.
@ts37924
@ts37924 9 ай бұрын
Even if you guys used the celcius scale..then also if you wanted to find the value of a temperature outside the range of boiling or melting point of water wether on the celcius or Fahrenheit scale you must first find the value of that temperature on the Kelvin scale only and then convert it into the °C or °F respectively using correct formula. As the celcius and Fahrenheit scale can only measure upto a certain range that is height upto boiling point of water and lowest upto freezing point of water. Where as Kelvin is an absolute scale that can measure any temperature and doesn't have any limitations until it reaches a point where there is not temperature left to measure and all molecular motion ceases.
@pravin25
@pravin25 7 ай бұрын
Because because (😂) of today is Monday
@maahirsharma2001
@maahirsharma2001 7 жыл бұрын
Sir Why is that the temprature of a gas cant go below -273K?(Which is the least temprature that can be achieved.). Also why did we needed the Kelvin scale,was it due to tje absolute tempratures of gases?
@Vinny.Macedo
@Vinny.Macedo 7 жыл бұрын
You mean -273ºC right?
@ProfessorDaveExplains
@ProfessorDaveExplains 7 жыл бұрын
you can't have negative numbers in kelvin, that's the point of an absolute temperature scale, no negative numbers. so 0K is -273C, but we can't go below that as 0K represents a complete absence of heat energy. check out my physics tutorials on heat and temperature and thermodynamics for more about why this is the case!
@ts37924
@ts37924 9 ай бұрын
It is because all kind of molecular motion ceases at the absolute zero temperature and if there is not motion of molecules then there is nothing such as temperature therefore if there is no temperature then how can we measure it... temparature determines the motion of molecules in matter when there is no motion of molecules there is no temperature.. temperature like all physical quantities is quantification of physical properties of matter and in this case motion of molecules is the physical property if matter which when quantified is called temperature just like mass is the quantification of the inertia of a substance and inertia of a substance is a physical property of matter.
@aoi1640
@aoi1640 3 жыл бұрын
I just got a Ad about Homework Sucks The Ad was Relatable
@arantxaubide3119
@arantxaubide3119 4 жыл бұрын
ok
@redcroat
@redcroat 2 жыл бұрын
Wait isnt 1°C=274,15 K,
@learning-pe9ww
@learning-pe9ww 2 жыл бұрын
👍👍👍
@danag5610
@danag5610 2 жыл бұрын
Is there a way to convert fahrenheit to kelvin?
@ProfessorDaveExplains
@ProfessorDaveExplains 2 жыл бұрын
No you have to hit Celsius first.
@PyrusLex86
@PyrusLex86 2 жыл бұрын
F = (9/5C)+305.15 and K=(5/9(F-32))+273.15 would do it in one hit as K is just (C+273.15)
@vijayrana1386
@vijayrana1386 3 жыл бұрын
2:45 that's what u came for....thx me later....
@Baby-zs9jv
@Baby-zs9jv 4 жыл бұрын
Damn damn damn💯❤️❤️❤️❤️
@Lpp360
@Lpp360 4 ай бұрын
°Kalvin is superior.
@jorgesolis7891
@jorgesolis7891 2 жыл бұрын
But is the same temperature....
@St0neyBal0gney
@St0neyBal0gney 3 жыл бұрын
Fahrenheit 0° Really Cold Outside 100° Really Hot Outside Celsius 0° Fairly Cold Outside 100° Dead Kelvin 0° Dead 100° Dead
@ValorZeroAdvent
@ValorZeroAdvent 7 жыл бұрын
What concentration of brine is used in the calibration of a Fahrenheit scale?
@ProfessorDaveExplains
@ProfessorDaveExplains 7 жыл бұрын
good question, i dunno!
@ValorZeroAdvent
@ValorZeroAdvent 7 жыл бұрын
Ah, it's fine. Regardless, I find Fahrenheit very unintuitive because the boiling and melting point of water are assigned seemingly arbitrary numbers, and you can't tell by just glancing without any prior knowledge of the imperial scale. The average person wouldn't use saltwater in a significant scale generally, and so Fahrenheit didn't make any sort of practical sense. I just wish America adopts the metric scale like everyone else in the world someday. It's getting real annoying whenever I talk to my American mates and talk about weather and temperature. I just can't understand imperial without seeing myself spending way too much time learning a new scale I will never use, especially when metric does the same job and arguably better at it.
@sodalitia
@sodalitia 7 жыл бұрын
Its easy: it depends how many spoons of salt you added to a teacup of water. The same simple rule applies to imperial measure of length: How much is an inch? The answer is: how long is a stick? I don't get it, why people don't understand imperial system. Its a simple system for simple people.
@MasontheMarxistDog
@MasontheMarxistDog 2 жыл бұрын
The us should use kelvin
@stevealienman767
@stevealienman767 Жыл бұрын
No the whole world should use Fahrenheit with the US because Fahrenheit is more precise in measurements when the temperature is changing. I hate metric scales in temperature all of the other metric measurements are okay in the world just get rid of stupid Celsius and Kelvin use Fahrenheit everywhere
@oliverjudson1834
@oliverjudson1834 Жыл бұрын
@@stevealienman767 no its not
@jesantonihevileon8611
@jesantonihevileon8611 Жыл бұрын
What really count's and matter is what the human beings it's going to feel in theirs skin in winter time. All those 3 scales seems were doing to complicate the human mind. Aboriginals peoples knows very well when was cold and hot without using any of those thermometer 🌡️. But European so called " civilización " only have complicated the way of living today.
@grantfloyd3392
@grantfloyd3392 4 жыл бұрын
mr k sent me here. pls help
@madeleinemogavero4407
@madeleinemogavero4407 4 жыл бұрын
AHHAHAHHA GRANT
@abdullahzahid9676
@abdullahzahid9676 3 жыл бұрын
Hahaa
@NonnofYobiznes
@NonnofYobiznes Жыл бұрын
*9/5* ? Pfff.... it's easier to multiply by 1.8. Nice try , but no cookie professor. Shouldn't you try to simplify things not just make them more complicated?
@cdfactory
@cdfactory Жыл бұрын
Bro stfu you’re mad over a fraction 😂
@carultch
@carultch Жыл бұрын
The last time I checked, 9/5 is identical to 1.8.
@stevealienman767
@stevealienman767 Жыл бұрын
No the whole world should use Fahrenheit with the US because Fahrenheit is more precise in measurements when the temperature is changing. I hate metric scales in temperature all of the other metric measurements are okay in the world just get rid of stupid Celsius and Kelvin use Fahrenheit everywhere
@ProfessorDaveExplains
@ProfessorDaveExplains Жыл бұрын
Kelvin is what scientists use. Actually learn things.
@oliverjudson1834
@oliverjudson1834 Жыл бұрын
kelvin is actually better
@oliverjudson1834
@oliverjudson1834 Жыл бұрын
lol the imperial system makes no sense
@oliverjudson1834
@oliverjudson1834 Жыл бұрын
Fahrenheit is idiotic
@carultch
@carultch Жыл бұрын
@@oliverjudson1834 For most units, I'd agree with you, but Fahrenheit actually makes sense, and has a very practical application. It is roughly a 0 to 100 scale of the general temperatures you'll experience as the temperature of your surroundings. The first third of this scale is freezing cold. The middle third is cold, but not freezing. The 2/3 point is the neutral comfortable temperature. And the upper third is warm to hot. Celsius is useful when there is value in keeping track of water's phase change points as milestones of the temperature scale, but it isn't as useful for reporting the temperature in human terms, in numbers most familiar to the general public. You have to use -20C to 40C to represent approximately the same temperature range that 0F to 100F represents.
Visualizing Molecular Geometry With 3D Software
16:09
Professor Dave Explains
Рет қаралды 49 М.
Celsius Made His Thermometer Upside Down
8:12
Veritasium
Рет қаралды 3,6 МЛН
WHY THROW CHIPS IN THE TRASH?🤪
00:18
JULI_PROETO
Рет қаралды 9 МЛН
Is it Cake or Fake ? 🍰
00:53
A4
Рет қаралды 17 МЛН
PINK STEERING STEERING CAR
00:31
Levsob
Рет қаралды 19 МЛН
How to Make a Quantum Tunnel In Real Life
10:02
The Action Lab
Рет қаралды 3,3 МЛН
How To Measure The Tiniest Forces In The Universe
15:34
Veritasium
Рет қаралды 6 МЛН
What the Fahrenheit?!
5:24
Veritasium
Рет қаралды 5 МЛН
How do Electron Microscopes Work? 🔬🛠🔬 Taking Pictures of Atoms
19:54
Branch Education
Рет қаралды 2,8 МЛН
Why Europe and America’s dying forests could be good news
13:30
DW Planet A
Рет қаралды 162 М.
Tucker Carlson is a Creationist Tool
13:54
Professor Dave Explains
Рет қаралды 229 М.
How to make Plutonium
11:53
Periodic Videos
Рет қаралды 1,2 МЛН
Why do calculators get this wrong? (We don't know!)
12:19
Stand-up Maths
Рет қаралды 2,1 МЛН
WHY THROW CHIPS IN THE TRASH?🤪
00:18
JULI_PROETO
Рет қаралды 9 МЛН