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When water is in a pan over a flame why does the water get hot?
Wiki User
∙ 13y ago
The flame heats up the metal pan because metal conducts heat well. Since the water is in the hot pan, it also gets hot.
Wiki User
∙ 13y ago
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What change in the water level occurs when you hold Erlenmeyer flask over a candle in a pan of water?
When you put a flask over the candle in a pan of water, the water in the pan starts to slowly rise inside the flask, and as the water slowly starts to rise, the candle slowly burns out.
What materials would you need to make hot ice?
sodium acetate water pan
What is an example of a chemical change a candle burns a pan of water boils a teaspoon of salt dissolves a burner gets red hot?
PhysicalPhysicalYes
What is a chip-pan fire?
The Stages of a chip pan fire 1. Oil gets so hot that it catches fire all by itself 2. Water is poured into the burning chip pan 3. Water is denser than oil, so it sinks to the bottom of the chip pan (shown in red). As the water touches the bottom, it is heated above its boiling point and instantly vaporizes. 4. The water vapour expands rapidly, ejecting a fireball of burning oil out of the chip pan and into the air where its surface area increases greatly and combustion proceeds much faster
What property is used to separate gold from sand when they are swirled in a pan filled with water?
Density. Gold has an extremely high density relative to the rest of the sand in the pan and will therefore fall to the bottom as one swirls the pan around. The water is there to provide a means by which to circulate the dirt mixture and eliminate the "sand" (the sand gets suspended in the water and spills over the sides of the pan as it is swirled). And that's pretty much panning for gold.
Is a pan over a flame radiation or conduction?
Both the flame heating the pan and the pan heating the water are examples of conduction. Convection is when the molecules of water heat other molecules of water.
How do you boil water on an open fire?
By putting the water in a pan/pot and then hold the pan/pot over the fire until hot :)
How do you make a grease fire?
Throw water onto over-hot chip pan.
What is the best way to keep pudding from burning?
Lower flame and keep stirring or put preparation pan in another pan of water so it is not directly over the heat source.
What direction will heat flow if cold water is added to a hot pan?
Water droplets will start evaporating on contacting the pan bottom, and they will tend to "dance" on the produced steam.
How do get hard caramel out of a pan?
Soak in hot water
What melts faster ice in hot water or ice in a frying pan?
Ice melts faster in hot water than in a frying pan. When ice is placed in a hot frying pan, it forms a layer of steam which it floats upon, that insulates it, to some degree, from the frying pan. Thermal conduction is better when it is immersed in hot water.
What materials would be useful in conducting heat?
any type of metal, that's why a pan gets really hot when put over a flame, because metal conducts heat really well
What caused the water level to change in your lab expeirement?
if its the one were you have water in a pie pan and you have a candle standing in the water and when you light it and then you put something like a beaker over it and it takes a minute to go out, then i have your answer. there's only 20% oxygen inside the beaker and the flame uses most of it, but not quite all of it. the heat from the flame makes the air expand and when the flame dies and the starts to cool down, it makes the air contract and that makes the water level rise as it attempts to follow the hot air. it was really neat when we did it in my freshman Physical Science Lab class!
When you boil water to make pasta hot water from the bottom of the pan carries thermal energy to water molecules at the top of the pan. this is an example of?
convection
When you boil water to make pasta hot water from the bottom of the pan carried thermal energy to water molecules at the top of the pan. this is an example of?
convection
Would it take more thermal energy to heat up a cold pan of water than a hot pan of water?
Yes
