What's the relation between chemical compositions and physical properties?

[xhtp2000]

Dear all, is the relation between chemical composition of a material and its physical properties a peering relation or a relation of subordination？

 

[berkeman]

Dear all, is the relation between chemical composition of a material and its physical properties a peering relation or a relation of subordination？

What are your thoughts on this? Is this for schoolwork?

 

[xhtp2000]

What are your thoughts on this? Is this for schoolwork?

nope, it's about my PhD project, we are now starting sorting of the recycled materials based on chemical composition, the traditional sorting criteria is mostly based on the physical and mechanical properties, I am thinking of the relation of this hierarchy, and wondering why is a new sorting criteria advantageous or specific over others.

 

[berkeman]

nope, it's about my PhD project, we are now starting sorting of the recycled materials based on chemical composition, the traditional sorting criteria is mostly based on the physical and mechanical properties, I am thinking of the relation of this hierarchy, and wondering why is a new sorting criteria advantageous or specific over others.

Okay, I've got it now. PhD work has nothing to do with school. Check.

Can you post your outline for your PhD work?

 

[PJC01]

I can say that the relationship between chemical composition and physical properties is a complex and multifaceted one. It is not a simple peering or subordinate relationship, but rather a dynamic interplay between the two.

The chemical composition of a material refers to the types and amounts of elements present in the material. These elements can interact with each other in various ways, forming chemical bonds and structures that ultimately determine the physical properties of the material.

For example, the presence of carbon atoms can give a material strength and hardness, while the presence of hydrogen atoms can make it more flexible and pliable. The arrangement of atoms in a material also plays a crucial role in determining its physical properties, such as density, melting point, and conductivity.

Additionally, changes in the chemical composition of a material can result in significant changes in its physical properties. For instance, altering the amount of carbon in iron can transform it from a soft metal to a strong and durable one, as seen in the production of steel.

On the other hand, the physical properties of a material can also influence its chemical composition. For example, exposure to high temperatures can cause chemical reactions to occur, leading to changes in the material's composition.

In summary, the relationship between chemical composition and physical properties is a complex and intertwined one. Both aspects are essential in understanding and predicting the behavior of materials, and they cannot be considered separately.