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What else can I help you with?
Holding your hand 30 centimeters above the flame of a candle you will receive the most heat by means of?
Conduction - the heat from the flame will be transferred directly to your hand through physical contact.
Why can you hold your fingers beside the candle flame without being harmed but not above the flame?
Beside the flame the heat you experience is that heat being radiated as light - if you hold your finger too close or leave it too long, you will get harmed! Beside the flame the air is cool as cool air is being sucked into the flame. However above the flame the hot gases produced by the combustion of the wax in the flame are rising upward by convection. These hot gasses will heat you skin by conduction and you will be burned very quickly.
Why do candles go out when you put a beaker over it?
As we know that for an object or substance to burn, its by means of carbon. Fire is very complex and needs oxygen for it to burn so by putting a beaker over a candle you are actually cutting the consumption of oxygen by fire, which will stop the fire from burning. THAT ANSWER IS FALSE. Because the candle is under a beaker and most beakers have lips the beaker is not fully cut off from oxygen so there is still oxygen. The candle does go out because of the carbon dioxide that is in the beaker
Does the cent affect the candles rate of burning?
The scent [note correct spelling] does not usually affect the rate of burning of a candle. There would be an effect only if the chemical that furnishes the scent happened also to be a catalyst for burning or to contain a flame retardant, but most chemicals added to candles to supply them with scent do not have such properties.
Where does the wax go as a candle burns?
This is because the wax oxidizes (burns) in the flame to yield water and carbon dioxide, which dissipate in the air around the candle, in a reaction which also yields light and heat. Candle wax (paraffin) is composed of chains of connected carbon atoms surrounded by hydrogen atoms. These hydrocarbon molecules can burn completely. First the heat of the flame vaporizes the wax molecules and then they react with the oxygen in the air. As long as the wax doesn't melt away from the flame, the flame will consume it completely and leave no ash or wax residue. Source: http://chemistry.about.com/od/howthingsworkfaqs/f/candlewax.htm
How do you use the word flame in a sentence?
The most effective way to extinguish the flame of a candle is to use a candle snuffer.People returned to churches all over the land and kindled flames of revival that are still burning todayThe candle's flame was flickering in the soft breeze
Different zones of candle flames?
These are the 4 zones of a candle flame from outermost to innermost A Non luminous zone . or zone of complete combustion b. Luminous zone or zone of incomplete combustion c. Dark zone or zone of no combustion d. Blue zone
Holding your hand 30 centimeters above the flame of a candle you will receive the most heat by means of?
Conduction - the heat from the flame will be transferred directly to your hand through physical contact.
Why does a candle give off little heat?
Candles give off little heat because most of the energy produced from the flame is emitted as light instead of heat. The relatively small size of a candle flame means that the amount of heat generated is minimal compared to other heat sources.
Why does the black soot formed?
A small stable flame of a candle has a lot less black smoke than a larger flickering flame. Air around the burning candle causes this to happen.
Why is sand a good material to have around a lighted candle?
The sand would stop a fire if the candle tiped over or at minimize the severity of the fire.And as the colour of both sand and candle flame is same.Thus, sand actually reflect most of the light produced by the candle to the surrounding making the light even brighter.
When a candle burns the most prevalent product are?
The most prevalent products of a burning candle are carbon dioxide and water vapor. The flame heats the wax, causing it to vaporize and then burn. The reaction between the wax vapor and oxygen in the air produces carbon dioxide and water vapor, along with heat and light.
Why can you hold your fingers beside the candle flame without being harmed but not above the flame?
Beside the flame the heat you experience is that heat being radiated as light - if you hold your finger too close or leave it too long, you will get harmed! Beside the flame the air is cool as cool air is being sucked into the flame. However above the flame the hot gases produced by the combustion of the wax in the flame are rising upward by convection. These hot gasses will heat you skin by conduction and you will be burned very quickly.
Why do candles go out when we put glass jars over them?
Oh, dude, it's like, science and stuff. So, when you put a glass jar over a candle, it messes with the oxygen flow that the flame needs to keep burning. It's like trying to breathe with a plastic bag over your head - not a good idea if you want to stay alive, you know? So yeah, candles need oxygen to burn, and glass jars are like, "Nope, not today, candle."
What type of fuel is most polluting?
diesel
What is the role of a wick in a candle?
This falls under a dangerous category. One that should not be answered here to avoid injuries. Contact a fireworks factory and they may tell you. ----------------------------------------------------------------------------------------------------------------- As a number of 'science experiments' have caused permanent and serious injury to those who started out just playing MOST countries ban the making of fireworks except by those people who make a living in making new and exciting pyrotechnics. For safety reasons even making a wick for fireworks involves using materials that cause injury to the just playing.
Where are the most explosive volcanoes subduction zones or rift zones?
Explosive volcanoes are most common at subduction zones.
