Please note that a "change of state" involves TWO states, not just one. Using just the three most common states of matter:
* A solid can change to a gas
* A liquid can change to a gas
* A gas can change to a liquid
* A gas can change to a solid
* A solid can change to a liquid
* A liquid can change to a solid
The first four changes in the list above involve gases.
I'd say, that it is a physical change with which many chemical changes can be associated. If breathing is taken only to be exhaling and inhaling then it's a physical process. But, in essence the oxygen taken inside is ultimately initiating chemical reactions at cellular level - chemical change .
So, it sort of depends on the context chosen.
hi it is a physical change as it can be reversed it is not permanent no new products are formed
Liquefaction of air is a physical change. This process is the change of a gaseous substance into a liquid phase. An example of the liquefaction of air is when air hits a cold glass.
Cooling the air is a Physical Change but there can be a chemical change going on inside the air conditioner with the coolant.
this is when a gas changes into a solid or a liquid. the name for a gas changing to a solid is calleddeposition and a gas changing to a liquid is called condensation.
Yes the compression of a gas is a physical change.
It is a physical change since air can be liquefied under high pressure. When we decrease the pressure it changes back into air.
phyiscal
chemical
It is a chemical change.
Itβs a physical change π
Physical.
Chemical change
no. its chemical properties do not change, only its apperance.
It is a chemical change.
Itβs a physical change π
It is physical
Physical.
It is a chemical change as it releases gases into the air.
Physical change
Physical
Chemical change
No. "Chemical change" means that the bonds between atoms are rearranged.
Penis
is air expantion a chemical or physical change?
no. its chemical properties do not change, only its apperance.