0
The shiny metal teapot reflects heat back in on itself and has a lower thermal mass than a brown china teapot so it stays hot longer. I have tried this by wrapping a copper can with aluminum foil and spraying an identical copper can with matte black paint.
Filling both with the same amount of boiling water and adding thermometers I took readings every minute for about 20 minutes It became clear that the shiny can's water stayed about 4 degrees C hotter than the heat radiating black can.
Case solved!
What else can I help you with?
Is Cooper shiny or dull?
Cooper is shiny when freshly polished, but it can become dull over time as it oxidizes and develops a patina.
Does shiny black absorb more sun then dull black?
Yes, shiny black absorbs less sunlight than dull black. Shiny surfaces reflect more light, so less heat is absorbed compared to dull surfaces which absorb more light and heat.
Is cotton shiny or a dull fabric?
Cotton is typically considered a dull fabric. It has a natural matte finish due to its fibers and weave structure, which give it a soft and comfortable feel.
Which is the best absorber of inferared radiation heat a dull surface or a shiny one?
A dull surface is a better absorber of infrared radiation heat compared to a shiny surface. The rough texture of a dull surface allows for more absorption of infrared radiation, while a shiny surface reflects much of the radiation.
Do dull silver and shiny white surfaces always emit the same amount of radiation?
No, dull silver surfaces may emit less radiation than shiny white surfaces because the reflectivity of a material affects its ability to absorb and emit radiation. Shiny white surfaces reflect more radiation compared to dull silver surfaces that may absorb and emit more radiation.
Why does shiny teapot hotter than dull brown teapot?
A shiny teapot reflects more heat back into itself due to its smooth surface, while a dull teapot absorbs more heat due to its rough surface. This means the shiny teapot retains heat better and stays hotter compared to the dull teapot.
Why will a shiny silver teapot keep tea hot for longer than a dull brown one?
A shiny silver teapot has higher reflectivity, which means it reflects more heat back into the teapot, keeping the contents hotter for longer. A dull brown teapot absorbs more heat, leading to quicker cooling of the tea inside.
Is bromine shiny or dull?
Bromine is a dull, dark red-brown liquid at room temperature. It has a slightly shiny appearance when in its liquid state, but it quickly evaporates into a reddish-brown gas, which is not shiny.
Is iron is shiny or dull?
Iron is typically dull and lusterless in its natural state. When exposed to moisture or air, iron can also develop a reddish-brown layer of rust, further diminishing its shine.
Is silicone shiny or dull?
dull
Is charcoal dull or shiny?
dull
Is gold shiny or dull?
shiny
Is cotton is shiny or dull?
Shiny
Is rhodium shiny or dull?
It is shiny.
Opposite word shiny?
Dull?
Is a metal nonmetal or metalloid dull or shiny?
It could be dull or shiny. It doesn't matter.
Is Ruthenium shiny or dull?
High purity must be shiny, but if oxidized it will become dull
