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What gas in the air burns when candle wax melts?
The candle wax melting exposes the wick, where the actual burning takes place. Oxygen in the air combines with the vaporized wax in the wick, generating heat and giving off carbon dioxide (also traces gases and often carbon soot). (see related link)
Where does the wax of a candle goes when it burns?
When a candle burns, the wax is drawn up the wick and vaporized into carbon dioxide and water vapor, releasing heat and light. The wax is essentially converted into these gases and released into the air.
What energy transformations of a candle burning?
When a candle burns, the chemical energy stored in the wax is transformed into heat energy and light energy. The chemical bonds in the wax molecules break, releasing energy in the form of heat and light as the wax reacts with oxygen in the air.
What happens to the carbon when the candle burns?
When a candle burns, the carbon in the wax combines with oxygen in the air to form carbon dioxide gas. This process releases heat and light, which is why the candle produces a flame.
What is the change of state in a lit candle?
The change of state in a lit candle is from solid (wax) to liquid (molten wax) to gas (vaporized wax) as the heat from the flame melts the wax and turns it into vapor that burns, releasing heat and light.
What energy is released as wax burns?
The energy released as wax burns comes from the chemical potential energy stored in the wax molecules. During combustion, the carbon and hydrogen in the wax reacts with oxygen to form carbon dioxide and water, releasing heat energy in the process.
What changes do you see when a candle burns?
When a candle burns, the wax at the top of the candle melts and turns into liquid, which is then drawn up the wick by capillary action. This liquid wax vaporizes and mixes with oxygen in the air, producing a flame. The heat from the flame melts more wax, sustaining the process and allowing the candle to continue burning.
Where is the wax of the candle going?
The wax of the candle is being consumed through the process of combustion. As the wick burns, it melts the wax, turning it into vapor and releasing carbon dioxide and water vapor into the air.
Burning candle what is actually burning?
Vapours of the candle wax, which contain carbon and hydrogen, react with oxygen in the air to create carbon dioxide and water. Often, the combustion is incomplete and small amounts of carbon monoxide as well as carbon (soot) are released.
How does the state of matter of wax in a candle change when the candle it lit?
When a candle is lit, the solid wax melts and turns into liquid wax. As the candle burns, the liquid wax is drawn up the wick by capillary action and evaporates, creating a gas that then burns and produces heat and light.
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
What are the two products of combustion of a candle?
The two products of combustion of a candle are carbon dioxide and water vapor. When the candle burns, the wax fuel reacts with oxygen in the air to produce these gases.
