Burning 7 Calories in Liquid Oxygen
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- เผยแพร่เมื่อ 6 พ.ค. 2023
- 7 Calories doesn't seem like that much energy - until you burn them in liquid oxygen. Now it finally makes sense why it takes so much exercise to burn calories.
#chemistry #science #experiment #liquidnitrogen #liquidoxygen #calories #diet #exercise #rocket #fire #shorts - วิทยาศาสตร์และเทคโนโลยี
I'm still wondering how much energy is in 7 calories; cool flames though.
Yeah, he didn't quite cover that
7 food calories (kcal) is 7000 calories, which is equal to 29,288 joules. 29,288J exerted over 1 minute is about 488 watts. 1 second, 29,288W. Chemical power is crazy.
@@Jake951716 , give this man a cigar! 😉👍
@@OMIMox your units mixed up. One calorie raises 1 g (or 1 cc) of water 1° C.
7 kcal would raise 1 L of water 7° C
@@WhackBytch256 crap, sorry was doing 2 things at once and got mixed up. Thanks!
I was hoping for a numerical figure and what I got was "a lot".
10/10 would watch again.
The numerical figure is 7. Calories are a measure of energy, lol
1 food calorie (kcal) is 1000 calories, which is 4184 joules, so about 29.2kJ ish
1 calorie is the amount of energy it takes to heat 1 gram of water by 1 °C
For the dietary calorie it’s 1 kilogram water.
@@sage5296 Also about 8 Watt-hours. The same energy for an 8W LED to burn for 1 hour.
@@gujwdhufjijjpo9740s that why 1cal = 4.18J is exactly 1000× less than the specific heat capacity of water (ignoring units of course)? if so that’s cool
That’s a good test tube. Extreme cold to extreme hot in a matter of seconds
That is what I am amazed by.
Test tubes for science can do that
Pyrex. It can take the heat, but sudden cooling will break it.
Exactly my thought
Probably borosilicate glass. Pyrex doesn't use the same heat-resistant glass they used to, it's still heat-resistant but it trades that down for some more durability. The old stuff is more heatproof
7 calories, also known as 7 kilo calories.
Capital C denotes kilo calorie
Or easier yet ; 7000
so what if i only want to say 7 calories instead of 7 kilo calories? do i say 7 gram calories? 7 mili calories? or just 7 calories?
@@duykhang91 kilo means 'times thousand' as in kilometer, kilobyte, kilogramm and kilocalory. Gramm itself is a unit of measurement for mass. When you mean 'times one' you don't add kilo: 7 calories are 7 calories. The guy in the clip misspoke/ was off by a factor of 1000.
@@duykhang91 You can say 7 calories. As in Wikipedia: "In nutrition and food science, the term calorie and the symbol cal almost always refers to the large unit. It is generally used in publications and package labels to express the energy value of foods in per serving or per weight, recommended dietary caloric intake,[6][7] metabolic rates, etc. Some authors recommend the spelling Calorie and the symbol Cal (both with a capital C) to avoid confusion;[8] however, this convention is often ignored." So Scientifically you would say kilocalories and calories. Just remember that 7 calories are not a lot of energy, so it could not have been only 7 calories like in the video.
The moral of the story: never drink liquid oxygen with your dinner!
Or at least don't smoke riggt after dinner!
Unless you want to lose weight verrry quickly lol.
But how am i supposed to burn calories then?
😂3 Trillion 👌🏽
Definitely don't drink liquid oxygen with Taco Bell 🤣😂
7 calories is the average energy your body will get by digesting that chip. The actual energy stored in the bonds between the atoms is obviously much, much higher.
@@pahub9256 and how is that false, would you care to explain?
Source?
So you're saying what is shown here is more energy than the body can get?
Why would we determine energy content in carbs, fats ...by burning them with oxygen in calorimiter bomb? Essentially the same as this but much more controlled 🤔
Calories is for the actual energy stored in the food, not how much the body can absorb.
For example, in food containing alot of fibers, the body can not absorb all the calories and therefore you can assume you will be getting less calories than what is written on the packaging.
I am going to tolerate the ambiguity of this statement. It is true that the energy of the masses is indeed much higher, but that energy cannot be accessed by chemical reactions, for example combustion like this one. You can easily use the energy mass equation to find out energy equivalent of the mass, equates to 9 times more energy than Hiroshima bomb, assuming the piece is 1 gram.
"Mona's Hot Mom" caught me off-guard 👀
?
😂 I was wondering the same thing. I am sure he is explained it to that person.😂 Ouch I think he wanted to get that off his chest saying that
No one gonna ask eho Mona's Hot Mom is? I see them as an absolute W
mona's hot mom has got it going on
there's always that one guy that always makes me chuckle in the credit section
I like the idea that it really is a very confident mum
So many people think oxygen is flammable but it's not. It just makes any flammable material much much much more flammable.
And make fire retardant materials burn like it's gasoline.
With very few exceptions, a material is only flammable with the presence of oxygen.
Most flammable things only burn in the presence of another chemical. That doesn't mean it's not flammable. You need to be careful about how you define flammable. I would argue that liquid oxygen is flammable, but it depends on the definition you are using.
@@megamaser it is not flammable. Liquid oxygen is an oxidizer. Pure oxygen will not light without fuel to burn.
@@R0me0316 and cotton will not burn without oxygen. They only burn when combined. They are each equally necessary to have a flame, so they are each equally flammable
In a chemical sense, you mean 7000 calories, yeah? The food we eat is measured in kilo calories, and we just drop the "kilo" part. So, 7 Calories on the nutrition information is 7000 actual calories.
Yeah, I'm sure he had the same thought, but realized that anyone that knows the difference between Calories and calories would be able to deduce which he's talking about, and the other group only knows the former, leaving no reason to specify which it is.
Use joule.
The title of the video says Calories with a capital c
why do yall not just use kilocalories like the rest of the world
i am here to say that was already said by @CosmicWaltz7
Damn we can go to the moon and back with a medium big mac combo
If you think about it, 7 kcal is the heat that you can give to a kilo of water to rise it's temperature 7 degrees Celsius. And knowing how difficult it is to rise water's temperature, it is A LOT. Just a reminder of how complex our reactions really are 😊
fun fact: you can cut steel with an oxygen/pasta fueled thermal lance
Source: experience? I kinda want to see that now
@MineTech48 there's a few videos out there, here's one I found on the first few yt results
th-cam.com/video/96AhjceZJLk/w-d-xo.html
@@minetech4898 Source: first result when you google 'pasta thermal lance'. Come on, people.
i thought pasta was just gonna be some colloquial term for some kind of wire. but nope. its actually spaghetti lmaoo
Guys.
The pasta thermal lance.
Go get it.
It’s important to note that this is 7 Calories (kcal), not 7 calories.
Calories = food calories, which is 1000x of regular calories
kilocalories not calories
this was cool, but you should do an actual caloric capacity experiment.
Please keep in mind that the term "Calorie" is colloquial. It's the commonly accepted abbreviation for "Kilocalorie" in other words, that seven calorie chip is technically seven thousand calories.
"how much energy is actuallu in 7 caloroes?"
29.3 joules of energy
So 7 cal = 0.0293 kJ
*cough* 29,260 joules in 7 Calories
For anyone wondering about the rocket engine thing, i will explain: Liquid oxygen (or LOX for short) is used in cryogenic rocket fuels. The most common ones are Hydrolox (Liquid Hydrogen+LOX), Kerolox (refined kerosene+LOX). The Starship uses Methalox, which is liquid methane+LOX.
There there's russia with their unsymmetrical dimethylhydrazine + dinitrogen tetroxide (n2o4/UDMH)💀
They should use ethane or propane. Much better energy densityz
Important to note that to obtain the energy of food, the body needs to spend energy in digestion, movement of the molecules and even to start the bioreactions, which makes this experiment an overestimation. That said, these kind of fatty and sugary foods are really easy to digest so they are usually less healthy than the same calories in other forms like idk, vegetables.
Also just because it burns doesn't mean we can extract any energy from it. Cellulose burns readily but it's indigestible to us. Gasoline is full of energy but drinking it could kill you.
Ahh, an interesting comment !
Still, it shows how unefficient as life forms we and mammals in general are so I liked it :)
Guess I can fly to the moon with my daily calories intake.
For those who are still wondering the unit for energy in food is the Calorie.
IIRC, a Calorie is defined as:
"How much energy is required to heat a 1 cm cube of space to 1 degree C° at sea level."
The experiment works like this:
You have a container, (Con A). And you place Con A in a chamer that mimics atmospheric pressure at sea level. Within Con A is a 1 cm^3 cube (this notation is the same as writing out 1cm by 1cm by 1cm). The cube has a given about of food stuf (rice, chips, whatever is being tested for caloric value.)
[ I forgot to mention that there is water within Con A abd that the Cube stants above the water on a pillar that will ignite and heat the food item. ]
After the food item is ignited abd subsequently burned, you then messure the time it takes for the heat from that food item to raise the water within Con A to 1 degree C° above its current temp and there you have a Calorie.
Now I must express that this is going off my memory and not from google, so im sure im misremembering somethings or mixing the order of operations.
7 Calories (the capital C is important) is actually 7 kcal, or 7000 calories. If you ever plug the numbers into a formula fit energy, use the kcal number unless the formula specifies the capital C Calories.
I love how you needed to say: Do not try this at home
like, damn how dare you ruin my weekend plans
_Technically,_ Starship burns liquid methane and liquid oxygen, and while yes natural gas is mostly methane, but it's only the same thing in the way that RP1 and diesel fuel are the same thing. Yeah, they're both kerosene, but if you tried burning diesel in a rocket engine you would coke up the injectors really damn quick.
As some liquid oxygen, myself, I can confirm that one potato chip is all it takes to put me on the moon
Correction: 7 kilo calories
More impressive than the chip was the vial that withstood the thermal shock of going from well under the freezing point of water to hundreds of degrees above it.
That moment when your “bomb calorimeter” is actually just a bomb
By calory, you mean kilocalory, right?
Yeah, he said it wrong. Unless this is some kind of diet noodle.
You mean kcal = 7000 cal , right ?
That's enough energy to raise an entire liter of water by 7°C, or to completely vaporize a few grams of ice
Italians should invent spacecrafts. Clearly pasta is the missing item for space travel.
It's not just 7 calories, food is measured by kilocalorie to make it easier to keep track of because anything smaller is negligible inside the body. It's actually 7000 calories.
Came here to say this
I think the convention is to say "Cal" with capital c to mean kc.
it is 7 Calories because calories with a capital c means kilo calories
@@tonnynguyen390 the captions always stayed lower case. It also isn't common knowledge so I felt it needed clarified.
This is basically how the Matrix started
For those wondering 7 Cal. is 7000 calories. He's using the American Food Calories which is a kilo calorie in most other countries.
Also, calories are a measurement of energy.
😂😂😂
Murica
This was such an informative short
Isnt it 7 kilocalories?
This. This needs to be pinned.
It is, which in American notation is awkwardly just Calories with a capital C
@@nomcopterlabs Huh, i didn't know that, goddamn americans and their weird measuring system.
I'm going to pretend that it isn't the same in the UK where kilocalories are just called calories and that Americans totally eat 1000x more calories than here.
Considering the recommended average daily adult calorie intake limit is 2000 calories... I don't think so
I'm gonna try that at home
Still don't know exactly the amount of energy is in 7 calories, but now I want to see Frito rocket engines!
*starship burns methalox, which is a mixture of liquid oxygen and liquid methane. It's not just any old "natural gas", and it's certainly not gaseous
7 kcal = 7000 calories
But the chip is 7 calories. All the comments stating it's 7kcal are wrong - the average adult diet is 2000 calories per day. If this chip was 7000 calories, you'd be more than 3.5x over your daily recommended calorie intake in a single chip.
@@Duck_side actual unit is kcal kilo calories but everyday people say calories. Check any european food label, if you're lucky it may also include kJ kilo Jules, so you were be able to recalculate yourself.
kcal = calorie, google it if you dont believe me. google how many kcal in 1kg or 2.2lbs.
@@kribax7904 1 kcal = 1000 cal
@@kribax7904 you can’t say “how many calories are in a kg” cal is a unit of energy and kg of mass, they aren’t related
The funny thing about calories is that the body doesn't utilize stored energy from carbohydrates in the same way did they get utilized when they're burned by a chemical oxidizer. Another thing is (if I heard correctly) what are called calories in reference to food labeling are actually kilocalories (1000 calories per "calorie").
thanks for pointing out this common mistake, it's always KILO calories in reference to foods. And given that 1000 calories is defined as increasing the temperature of 1kg of water by 1 Kelvin, it's quite a lot of energy.
1 Calorie/ 1 kcal is the amount of energy required to raise the temperature of 1L of water by 1 degree Celsius
Bro took 'burning calories ' to whole another level 😂💀
Cool! Now try a few grams of antimatter 🙃
Never said how much energy.
Yes he did, visual he showed it in the video and he said the chip had 7kcal of energy
How do you suppose he say that? That's 7 kcals. The only way to say in words.
For this kind of video, you should really specify kilocalories
that little chip gives you energy for .07 miles.
i had a thought "they should use that for rockets" ive never felt more smart
The original method is called bomb calorimetry. It's not a good representation of the actual amount of energy our bodies can extract from food, as our bodies are not 100% efficient. We have to account for the energy "lost" in urine and feces. Some better methods exist to address this problem. These methods are based on the concept of metabolizable energy (ME) or net metabolizable energy (NME), which are the energy values of foods after subtracting the energy lost in urine, faeces, and combustible gases.
One method for estimating the ME or NME of foods is to use indirect calorimetry, which measures the oxygen consumption and carbon dioxide production of a person or an animal after eating a food. This method can calculate the heat produced by the body, and the respiratory quotient, which indicates the type of fuel being oxidized. By using these data, along with the nitrogen excretion in urine, the ME or NME of the food can be estimated.
Another method for estimating the ME or NME of foods is to use empirical factors derived from experiments on humans or animals. These factors are based on the average digestibility and metabolic efficiency of different types of foods, and are applied to the gross energy values obtained from bomb calorimetry. For example, the FAO recommends using the following factors for calculating the ME of foods:
- Carbohydrate: 3.75 kcal/g
- Protein: 4.0 kcal/g
- Fat: 8.8 kcal/g
- Alcohol: 6.3 kcal/g
- Polyols: 2.4 kcal/g
- Organic acids: 3.0 kcal/g
Fun fact: they actually explode food in a bomb calorimeter to find out how much calories it has
Bro sounds like Sheldon from the big bang theory and I'm loving it haha
That's not 7 calories, more like 7000 calories.
7 Calories = 7 kilocalories = 7000 calories (lowercase)
@@doppled The whole title is in uppercase so it's impossible to tell.
And this is why burning calories is hard.
You probably mean kcal. so its 7K * kg water or 29.4 KJ
Mistaking calories with Kilocalories continue
And yet I still don’t understand calories lmao
1 calorie is the amount of energy it takes to heat up 1ml of water by 1 degree celsius. the "calories" you see on the back of food containers is actually in kilocalories. so 3 chips ahoy cookies, for example are actually 160 KILOcalories, or 160,000 calories. we stopped saying the kilo part for some reason and the distinction between calories and kilocalories are really only for chemistry and physics discussions now. 99% of the time you hear "calorie", its about food calories. its so confusing for no reason.
Babe, wake up, a new chemistry channel just got recommended, it looks promising
Now do that with 180 calorie food
"MONA'S HOT MOM" AT THE END IS SENDING ME
LIQUID oxygen?? You mean I've been breathing it my entire life like a chump?!
This is how much hypothetical work it takes to burn 7 calories; of pure carbs and trans fat.
Choose your diet *wisely*.
Next month: NASA testing first rocket fueled by chips
Thats how much energy I burn while working out? That's insane
Elon, we got a new fuel source for your rockets: bags of chips.
Imagine Elon musk using twist Cheetos for rocket fuel
"To find out the energy in this 7 calorie chip, we'll be drenching it in lighter fluid and igniting"
FOUL! That's 7000 calories, or about 29.5 btu. That's roughly equivalent to about 30 or 40 match heads (matchheads have their own oxidizer). 30 btu is actually quite a lot of power, when spent over less than a minute. No wonder it burns hot. But using LOX is still _cheating_! All that does is speed up the combustion process. No less, no more energy than in the dry noodle when completely incinerated.
Me after eating some chips and liquid nitrogen
"Firestyle fireball jutsu"
Starting a go-fund me to launch the first rocket via chips
This adds a whole new meaning to “it runs on chips.”
Keep in mind that alot of food that is plant based contains cellulose (chains of sugars) which we can't digest, so even if the item had "zero calories", as long as it had cellulose (such as plant fiber), it would still burn and give off lots of heat and energy. An example of this would be cotton or wood, which we do not eat since we can't get any energy (calories) from them, yet they still burn obviously.
That’s about 30kJ of energy and humans run at around 100W, so that’s 5 minutes of energy for a human. However, that fire burned at a higher wattage in a much smaller volume, hence being like 1500°C vs humans at 38°C
Burning an average 85kg human body under such conditions, what amount of energy in kilocalories does it potentially (and kinetically) contain, and... what useful purpose could the instant release of this energy be used for?
That cheeseburger I just ate should’ve sent me to the moon
This is enough energy to sit and exist for about 10 minutes.
That is awesome! I imagine there is a good deal of energy released from the burning chip beyond the 7 calories that can be digested by humans, but I don’t know for sure.
I’m amazed that testtube didn’t shatter going from the minus-whatever of the liquid oxygen to actually being a/in a jet engine. Talk about quality construction
The test tube was FANTASTIC!
Ever wonder how much energy is in 7 calories? About 7 calories
For those wondering what the actual answer to what "how much energy is 7 calories," it is equivalent of turning on a 10w LED bulb for just under 3 seconds.
1 cal = 4.184 joules
7 cal = 29.288 joules
E(J) = P(W) × t(s)
29.288j = 10w x 2.9288s
Props to the cameraman for surviving on a -320F degree exoplanet to film this for us
It just grew my trust on the test tubes which I use for pouring conc. H2SO4 in water and it turns insanely hot....
I _really_ appreciate you capitalizing the "C" in "Calories"
1 calorie = to 1000 Calories
When, in the USA, we have a recommended average daily intake of 2000 Calories, that is actually 2 000 000 calories.
Americans are too stupid for kilocalories.
calorie is a unit measurement of energy, like joule.
A Calorie is a kilocalorie.
And _SO_ many people dont properly notate, then it confuses me and they dont know there is a difference, when i explain
That was a pretty badass demo I'm not gonna lie dude
After a hot day at work I could use a mug of liquid oxygen to chug back on
Alternate title making the coldest thing in the world turn into the hottest thing in the world in less than a second
Dietary calories are actually 1000 calories as used in actual physics and chemistry.
The food sellers thought no one would eat a chip with 7000 calories in it.
It suddenly turned into a character from a Cultivation Webnovel,😅
The glass holds surprisingly well.
With that much energy we can fuel space travel on the average macdonalds order per light year.
Hear me out.
We can invent fire-breathing if we can invent a animal that can create liquid oxygen as a byproduct of breathing.
"DO NOT ATTEMPT"
*puts back my liquid oxygen in disappointment*
Dude thank you, I was just trying to find an example of exothermic reactions
Just by sitting around and doing nothing the average human needs around 2000 kcal of food per day, which is around 2 million calories.
TIL: Rocket pasta will take us to mars
"DO NOT ATTEMPT"
All 1,024,792 of us put our cryogenic nitrogen coolers and oxygen concentrators back on the shelves.
A million people all at once mutter, "dangit."
For anyone wanting to know, the energy in 7 calories is precisely 7 calories.
What he is showing you is potato/oil combustion, not a quantity of energy.
Sheldon went crazy
That is what happens inside of cells, but in a super controlled and highly efficient fashion. Makes you think of food in a very different way!!! 👍
I love that you automatically show Celsius measurement. ❤ great clip