7 ms·

Given enough temperature, can't you melt an egg?

by jiofj 3y ago

imurray 3y ago
Doesn't look like it: https://www.youtube.com/watch?v=imVKSskCB4I#t=3m50s https://www.youtube.com/watch?v=imVKSskCB4I#t=3m50s
- londons_explore 3y ago
  Was that guy not thinking when gluing something down with hot glue that he was about to point a blowtorch at?
BugsJustFindMe 3y ago
Cook, yes. Burn, yes. Vaporize, yes. Melt, no.
nyanmatt 3y ago
I believe it’s theoretically possible (practically impossible) if done in vacuum (to prevent oxidation) and you somehow increase the density of the egg to remove any vapor pressure (to prevent vaporization). Just guessing here. I’m no thermodynamics expert, just a guy who melt things occasionally.
- kergonath 3y ago
  At atmospheric pressures it would sublimate rather than melt, so it’d be even worse in vacuum. You’d need a reducing atmosphere with high pressures. Carbon is not that easy to oxidise, but there is some oxygen in the egg. So you should be able to do it in a container filled with argon, with an oxygen getter. You’d need to bring it to 106 atmospheres (easy) and 4600 K (really quite hard). The good thing is that at these pressures you should not have issues with the water expanding too much. It’d be better to have a hole in the shell, though. That is ignoring any interaction with the shell, which should melt around 1600 K.
jehb 3y ago
It's in fact pretty easy to melt an egg. First, raise it above 29 degrees Fahrenheit or so, and this will melt the internal section. Remove this melted internal section and set it aside. Now melt the external section, which is mostly calcium carbonate, by raising it to about 1,517 degrees Fahrenheit. There, a melted egg.
personalityson 3y ago
Can this be called "melting"? "In 2015, a team of chemists in the US and Australia showed they could reverse the process. They added urea to liquefy the boiled egg whites, then put them in a vortex device to pull apart the proteins and return them to their original state." https://www.sciencefocus.com/science/can-you-unboil-an-egg https://www.sciencefocus.com/science/can-you-unboil-an-egg

Given enough temperature, can't you melt an egg?

by jiofj 3y ago

Given enough temperature, can't you melt an egg?

Doesn't look like it: https://www.youtube.com/watch?v=imVKSskCB4I#t=3m50s https://www.youtube.com/watch?v=imVKSskCB4I#t=3m50s

londons_explore 3y ago
Was that guy not thinking when gluing something down with hot glue that he was about to point a blowtorch at?

BugsJustFindMe 3y ago

Cook, yes. Burn, yes. Vaporize, yes. Melt, no.

nyanmatt 3y ago

I believe it’s theoretically possible (practically impossible) if done in vacuum (to prevent oxidation) and you somehow increase the density of the egg to remove any vapor pressure (to prevent vaporization). Just guessing here. I’m no thermodynamics expert, just a guy who melt things occasionally.

kergonath 3y ago
At atmospheric pressures it would sublimate rather than melt, so it’d be even worse in vacuum. You’d need a reducing atmosphere with high pressures. Carbon is not that easy to oxidise, but there is some oxygen in the egg. So you should be able to do it in a container filled with argon, with an oxygen getter. You’d need to bring it to 106 atmospheres (easy) and 4600 K (really quite hard). The good thing is that at these pressures you should not have issues with the water expanding too much. It’d be better to have a hole in the shell, though. That is ignoring any interaction with the shell, which should melt around 1600 K.

jehb 3y ago

It's in fact pretty easy to melt an egg. First, raise it above 29 degrees Fahrenheit or so, and this will melt the internal section. Remove this melted internal section and set it aside. Now melt the external section, which is mostly calcium carbonate, by raising it to about 1,517 degrees Fahrenheit. There, a melted egg.

personalityson 3y ago

Can this be called "melting"? "In 2015, a team of chemists in the US and Australia showed they could reverse the process. They added urea to liquefy the boiled egg whites, then put them in a vortex device to pull apart the proteins and return them to their original state." https://www.sciencefocus.com/science/can-you-unboil-an-egg https://www.sciencefocus.com/science/can-you-unboil-an-egg