Examples of Physical Changes

Introduction to examples of physical changes:

A physical change as the name suggests, brings about a change in the physical state of matter under suitable conditions. Few characteristics associated with physical changes are following:

1. A physical change involves a change in the physical state of a substance by changing either the interparticle spaces or interparticle forces.

2. There is no change in the composition of the substances during the physical change.

3. The substances undergoing physical changes do not change their main characteristics.

4. No new substance is formed during physical change.

5. The change is temporary and can be reversed by reversing the conditions which bring about the change.

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Examples of Physical Change :


The change of state of ice to water and then to water vapours is because of these changes which occur upon heating. These get reversed when the vapours are cooled. In all the three states, water does not change the color of either blue litmus or red litmus. This means that it is neutral towards litmus paper. Even when water is mixed with other substances, it mixes without any energy changes. So, it can be separated by suitable means. Hence, it is physical change.

Melting of wax is another example of physical change. These change occurs upon heating. The process can be reversed by reversing the condition which bring about the change. No new substance is formed in the process. It is a temporary change. The substances do not change their composition during the process.

Dissolution of salt in water is also a physical change. This process too, is temporary and it can be reversed. There is no change in the composition of the substances used. No new substances are formed. The mixture shows the properties of its constituents. Please express your views of this topic Electromagnetic Spectrum Wavelength Chart by commenting on blog.

Mixing of Iron filings and sulfur is another example of physical change. There is no change in the composition of the substances during the physical change. The change is temporary and can be reversed by reversing the conditions which bring about the change. The substances undergoing physical changes do not change their main characteristics.