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The ceramic plate filters out some wavelengths.
Quote from: hamdani yusuf on 23/04/2022 23:08:35The ceramic plate filters out some wavelengths.By Kirchhoff's law, the ceramic plate does exactly as good a job of re-emitting those wavelengths as it does of absorbing them.
Do you think gas stove will give better result?
Quote from: Bored chemist on 24/04/2022 10:30:37Quote from: hamdani yusuf on 23/04/2022 23:08:35The ceramic plate filters out some wavelengths.By Kirchhoff's law, the ceramic plate does exactly as good a job of re-emitting those wavelengths as it does of absorbing them.The ceramic plate doesn't glow red. It's significantly cooler than the heating element.
So the fact that visible light goes through borosilicate is even less relevant.
So, the water receives some red and infrared radiation,
Quote from: hamdani yusuf on 25/04/2022 15:36:38 So, the water receives some red and infrared radiation,And the red light goes straight trough the water- because water is colourless.What point are you trying to make?
Quote from: Bored chemist on 25/04/2022 16:33:27Quote from: hamdani yusuf on 25/04/2022 15:36:38 So, the water receives some red and infrared radiation,And the red light goes straight trough the water- because water is colourless.What point are you trying to make?Identify all differences and similarities between microwave oven and infrared stove in boiling demineralized water inside a smooth container. Then identify which differences contribute to the difference in their result regarding superheating of water.
OK the so called infrared stove does shine a small amount of red light through the water.Do you think that is likely to have an effect?
At about 37 seconds you imply that my breath is at 100C on a cold day.
Your experiment shows that heating water from the bottom is less likely to cause superheating than if you heat it throughout.So what?
In reality, superheating was documented long before anyone had microwave ovens.So it is clearly possible to superheat water without using microwaves.
Quote from: Bored chemist on 04/05/2022 13:19:12In reality, superheating was documented long before anyone had microwave ovens.So it is clearly possible to superheat water without using microwaves.What's your evidence?
I missed this at the time you posted it.Quote from: hamdani yusuf on 05/05/2022 03:27:47Quote from: Bored chemist on 04/05/2022 13:19:12In reality, superheating was documented long before anyone had microwave ovens.So it is clearly possible to superheat water without using microwaves.What's your evidence?Personal experience.
Why do you think my experiments using infrared and gas stove didn't produce superheated water?
Chemists (and others) have been putting effort into avoiding the problem of superheating water since, at least, when my dad's chemistry books were written.https://en.wikipedia.org/wiki/Bumping_(chemistry)
Bumping occurs when a liquid is heated or has its pressure reduced very rapidly,
You need clean , smooth equipment.
The explanation is " due to a lack of nucleation sites "