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What is the chemical potential energy of a burning tea light candle -mini candles?
Wiki User
∙ 15y ago
It is the thermal energy released by the candle's material when it burns. Wikipedia gives a figure of 40 watts for a burning candle, so if it burns for 1 hour that is 40 watthours, or 144,000 wattseconds = 144,000 Joules. The thermal energy released by burning paraffin wax is 42,000 joules/gram, so that energy release represents about 3.5 grams of wax.
My mini T-light candles weigh 20 grams and the packet says will burn for 9 hours, so that would be 2.25 grams per hour. This is in the right street, but the flame from these mini candles must be less than 40 watts, more like 25 watts. Of course in reality you can never burn every scrap of wax, there is always some wastage in the form of a stub you get left with, and some wax may melt and run away without getting burned.
Wiki User
∙ 15y ago
Wiki User
∙ 15y agoThe figure for the energy of combustion for paraffin wax is 42 Kilojoules/gram. The weight of a normal domestic candle is about 50 grams, though they come in all shapes and sizes. If we take 50 grams, this means a whole candle will give 2100 kilojoules, though there will always be a stub left and some loss during burning due to melting wax dripping away and not burning. Depends if you want to allow for this or not, you can work out the energy released in a real situation or what would be released if every scrap of the candle is burned.
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Do burning candles use energy?
More accurately, burning candles convert energy from one form to another. The chemical energy available in the wax of the candle is converted, through the chemical reaction of burning, into primarily light and heat.
Is burning candle getting shorter physical or chemical change?
Burning a candle is a chemical change. It cannot be "unburnt"
How we know a chemical change has occurred when burning a candle?
Burning is a chemical reaction, an oxydation.
Is burning a candle a chemical change or a physical change give reason?
It is both a physical and chemical change. The burning of the wick s chemical while the candle melting being physical.
What is the chemical change when a candle is alight?
Burning of the wick or candle material, thermal dissociation of candle material.
Do burning candles use energy?
More accurately, burning candles convert energy from one form to another. The chemical energy available in the wax of the candle is converted, through the chemical reaction of burning, into primarily light and heat.
Why burning candle is chemical change?
It is a chemical change because the burning thread is combusted. The combustion is an oxidation reaction. Most importantly, it is a chemical change because after burning, the chemical properties of the thread is changed entirely!
What is burning candle it is physically Chang or chamically?
Burning a candle is a chemical change, as is burning anything.
Is burning candle getting shorter physical or chemical change?
Burning a candle is a chemical change. It cannot be "unburnt"
Is there physics in a candle?
Yes, part of physics is studying the transfer of energy from one form to another. Within the candle is chemical potential energy (think about how the candle has to burn in scented candles), when a fire source comes near enough to the candle the chemical potential energy is transferred into thermal energy (heat energy) and radiant energy (visible light energy)
What type of reaction occurs when a candle is burned?
There are 2; the melting of the candles wax is physical but the wick burning is chemical.
Which has a stronger smell candles or something burning?
Something burning is generally stronger than the scent of a candle.
How we know a chemical change has occurred when burning a candle?
Burning is a chemical reaction, an oxydation.
What is special about Rigaud candles?
The Rigaud candle is considered one of the finest, high quality candles that are available today. When the candle is burning, it gives off a beautiful aroma.
Is burning a candle a chemical change or a physical change give reason?
It is both a physical and chemical change. The burning of the wick s chemical while the candle melting being physical.
Why are burning candles and rusting examples of chemical changes?
Burning candles and the rusting of nails are examples of chemical changes owing to the fact that there are chemical reactions occurring and new chemical compounds are being formed as the reaction continues.When a candle burns, the wax and wick of the candle are undergoing combustion and (ideally) being chemically changed into carbon dioxide and water, which are two completely new chemical substances than were present in the candle. In the case of the nail, iron in the steel alloy from which the nail is made is combining with oxygen to form a chemical compound not present in the nail, namely iron oxide.
What is the use of a Candle holder?
to hold candles -.- To hold and support candles while they are burning so that they don't tip over.
