Why paper contracts when burnt?

  • Thread starter ajayraho
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In summary: So what's the reason behind the yellowing of papers, when kept for a long period of time?Actually, paper are not white from the origanls. It is yellow, we use some chemical bleacher to bleach the paper, however, the chemical will left ln the paper and during a long time, the chemical on the paper will reacts with paper which give a yellow colour on the paper.
  • #1
ajayraho
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I have observed many times, that when a newspaper is burnt, its writings become smaller.

Do the paper really contract when burnt?
 
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  • #2
ajayraho said:
I have observed many times, that when a newspaper is burnt, its writings become smaller.

Do the paper really contract when burnt?
It's not clear what you are describing.

When I burn a newspaper, it turns to ash.
 
  • #3
Hello Ajayraho,
I think your observation has credence.
The paper would have to get smaller and smaller as it burns.

For one thing all the water in the paper is driven off by the heat. The percentage change in volume night not be all that much, depending upon the makeup of the paper.
Next the carbon compounds are turned into gases that can burn with the oxygen in the air. So the paper itself is actually losing mass.

If you don't disturb the ash remaining, you can still sometimes read the now smaller print, at least where it hasn't curled up on itself.
 
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  • #4
the paper itself actually loosing massmoreove moreover there were water before in the paper and vaporized after burnt the peper. However paper are not pure elements so the VDW between particle actually maintain constant but number of particle decrease so the paper contracts.
 
  • #5
256bits said:
Hello Ajayraho,
I think your observation has credence.
The paper would have to get smaller and smaller as it burns.

For one thing all the water in the paper is driven off by the heat. The percentage change in volume night not be all that much, depending upon the makeup of the paper.
Next the carbon compounds are turned into gases that can burn with the oxygen in the air. So the paper itself is actually losing mass.

If you don't disturb the ash remaining, you can still sometimes read the now smaller print, at least where it hasn't curled up on itself.
A very satisfying answer..
So what's the reason behind the yellowing of papers, when kept for a long period of time?
 
  • #6
Hi Ajayraho
actually, paper are not white from the origanls. it is yellow, we use some chemical bleacher to bleach the paper, however, the chemical will left ln the paper and during a long time, the chemical on the paper will reacts with paper which give a yellow colour on the paper
 

Related to Why paper contracts when burnt?

1. Why do paper contracts need to be burnt?

Paper contracts are usually burnt as part of a ritual or ceremony to symbolize the end of a legal agreement. This practice dates back to ancient times when burning contracts was seen as a way to release the parties involved from their obligations and mark the end of a contract.

2. Is burning paper contracts a legal requirement?

No, burning paper contracts is not a legal requirement. It is a symbolic gesture and not a legally binding action. In most cases, contracts can be terminated by mutual agreement or by following the legal procedures outlined in the contract.

3. Can paper contracts be destroyed in other ways besides burning?

Yes, paper contracts can be destroyed in other ways such as shredding or tearing them up. The method of destruction may depend on the preference or requirements of the parties involved. However, burning is the traditional and most symbolic way of ending a contract.

4. What happens if a paper contract is not burnt?

If a paper contract is not burnt, it does not necessarily mean that the contract is still valid. As mentioned before, there are other ways to terminate a contract. However, in some cultures or traditions, not burning a contract may be seen as a sign of disrespect or bad luck.

5. Is there any significance to the act of burning paper contracts?

Yes, the act of burning paper contracts holds significance in many cultures and religions. It is often seen as a way to release negative energy or to symbolize the end of a chapter. Some also believe that burning contracts clears the way for new opportunities and beginnings.

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