Nearly, a physical change creates a substance and this is reversible. For example, ice-water. Water-steam. These are all reversible. A chemical change is irreversible. For example, baking a cake; you cannot get the original ingredients back again.
A physical change that does not produce a new substance is called a reversible change. This means the change can be undone by reversing the process, such as melting or freezing.
Cutting your fingernails is a physical change because the composition of the material (keratin) remains the same before and after cutting. A chemical change involves a change in the chemical composition of a substance.
Sublime is a physical change because it involves a substance changing from a solid directly to a gas without going through a liquid phase. This process is reversible, and the chemical composition of the substance remains the same.
yes it is physical change but how can it be rewanable thats my question
During a physical change, the characteristics of a substance such as size, shape, and phase may change, but its chemical composition remains the same. These changes are reversible and do not result in the formation of a new substance.
A physical change that does not produce a new substance is called a reversible change. This means the change can be undone by reversing the process, such as melting or freezing.
A physical change is reversible if the substance can return to its original state after the change has occurred. This means that the change does not alter the chemical composition of the substance, allowing it to be reversed through processes like melting, freezing, or evaporation.
a physical change is totally reversible, i.e, you can get the substance you will get back after some physical process like heating, evaporating, etc. thus the substance actually remains the same.
Freezing is a physical change in which a substance transforms from liquid to solid state by losing heat energy. It is a reversible process.
Cutting your fingernails is a physical change because the composition of the material (keratin) remains the same before and after cutting. A chemical change involves a change in the chemical composition of a substance.
The importance of physical change is that :-1) No new substance is formed.2) It is a temporary change.3) It is easily reversible.4) Very little heat energy is absorbed or given out.The mass of a substance does not alter in a physical change.
A physical change is reversible.
Yes, freezing is a physical change because it is a reversible process where a substance changes from a liquid to a solid state without changing its chemical composition.
the difference between a physical change and a chemical change is that a physical change is usually reversible whilst a chemical change is not reversible.
THE PHYSICAL CHANGE AND THE CHEMICAL CHANGE -physical change is characterized by the change of the physical state of an object and it is reversible while chemical change is irreversible since atoms and bonds are broken down to form a new substance
THE PHYSICAL CHANGE AND THE CHEMICAL CHANGE -physical change is characterized by the change of the physical state of an object and it is reversible while chemical change is irreversible since atoms and bonds are broken down to form a new substance
the difference between a physical change and a chemical change is that a physical change is usually reversible whilst a chemical change is not reversible.