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Sawdust has a high surface are to volume ratio while a log has a low ratio. Surface atoms react much more quickly than atoms in the interior (in this case the reaction is burning).
Wiki User
∙ 14y ago
Sawdust burns faster than a log because it has a higher surface area-to-volume ratio, allowing more oxygen to reach the wood particles and fuel the combustion reaction. The smaller size of the sawdust also means that it ignites more quickly and more evenly than a larger log, leading to a faster overall burn rate.
Wiki User
∙ 13y agoSawdust, no matter how tightly packed, has a lot more "air" in it than solid wood. Air supports combustion, hence the sawdust burns away faster.
Wiki User
∙ 7y agoMuch greater surface area. Wood powder, with even more surface area, is explosive when it is thoroughly mixed with air.
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Why a log of wood does not burn by a matchstick while paper does burn?
Wood has a higher ignition temperature than paper, so it requires more heat to start burning. The density and moisture content of wood also make it harder to light with a matchstick compared to the lighter and more flammable paper. Additionally, wood contains more structural components such as lignin that can impede the combustion process.
A large log of wood will burn more slowly than the same log chopped into smaller pieces What is the best explanation for this observation?
A larger log of wood has less exposed surface area compared to smaller pieces, so it takes longer for the heat to penetrate and ignite the wood. This results in a slower burn rate for the larger log. Additionally, the larger log may have higher density, requiring more energy to break it down into combustible gases.
Why can't the pH of an aqueous solution be less than 0?
The pH of a solution can be less than zero. Remember that pH is defined as the negative logarithm of the hydronium ion concentration, pH = -log[H3O+]. For pH to be negative, the log of the hydronium ion concentration needs to be positive. The log of a number is only positive if that number is greater than one. For example, the value of log(2) is about 0.30. This means that the pH of a strong acid that has a concentration of greater than 1 molar will be negative.
When a 1 kilogram log was burned 0.05 kilogram of ash was produced. The mass of the ash is less than the mass of the log because?
Some matter was converted to gases that were released.
How can the law of conservation of mass apply to a burning logif all that remains of it is ash?
The mass loss is due to the burning, which both drives out water and other fluids by converting them to vapor, and gasses like carbon dioxide when oxygen in the air combines with carbon in the log. A very small amount of mass is also converted into energy, and radiated from the log.
Why does a match burn quicker than a log?
the match is smaller then the log.
Why does kindling burn faster than the log from which they came?
Twigs burn faster than logs because the heat of the fire can wrap around the twigs quicker. Fires won't be able to penetrate through logs as quick because they are deeper.
Why does a log of wood take longer time to start burning than wood shavings?
Smaller surface area, Wood shavings are generally drier than a log of wood, because of the general density of the wood itself. Wood shavings are in turn, easier to burn because of the small amount of moisture in them, therefore, they burn faster, and easier.
Why does a solid wooden log burn more slowly than an equal mass of sawdust?
Because the solid log has less surface area.
What burns faster a log or a log cut into sticks?
Same thing.
When you burn a log in the fireplace why is there a difference in mass?
The difference in mass when burning a log in a fireplace is due to the release of gases and water vapor during combustion. These gases and water vapor escape into the air, reducing the overall mass of the log as they are no longer contained within it.
How can you increase your days on Howrse com faster?
You cannot achieve more than one day per log in day.
When you burn a log has a physical change occurred?
Yes, carbon from the log combines with the air to form co2.
When you burn a log what is happening from the energy standpoint?
When you burn a log, the chemical energy stored in the wood is converted to heat and light energy through the process of combustion. This process releases energy in the form of heat and light as the bonds holding the molecules in the wood together are broken, resulting in the production of carbon dioxide, water vapor, and ash.
Can you burn willow in a log burner fireplace?
Yes, of coarse you can!
How do you calculate a log with 9 diameter and 10' length?
You do not calculate a log!You can calculate the surface area or the volume or, if you know the species, the mass or even time for which it would burn in a hearth. But the log, itself, is not something you can calculate.You do not calculate a log!You can calculate the surface area or the volume or, if you know the species, the mass or even time for which it would burn in a hearth. But the log, itself, is not something you can calculate.You do not calculate a log!You can calculate the surface area or the volume or, if you know the species, the mass or even time for which it would burn in a hearth. But the log, itself, is not something you can calculate.You do not calculate a log!You can calculate the surface area or the volume or, if you know the species, the mass or even time for which it would burn in a hearth. But the log, itself, is not something you can calculate.
Why a log of wood does not burn by a matchstick while paper does burn?
Wood has a higher ignition temperature than paper, so it requires more heat to start burning. The density and moisture content of wood also make it harder to light with a matchstick compared to the lighter and more flammable paper. Additionally, wood contains more structural components such as lignin that can impede the combustion process.
