Question

What is the effect of change of pressure on the physical state of matter?Explain with the help of an example

Answer 1

If pressure increases the atoms are freed to move or compressed not to move so it depends on nature of material taken. For example if pressure is applied on ice it melts

Answer 2

Physical changes are changes affecting the form of a chemical substance, but not its chemical composition. ... Examples of physical properties include melting, transition to a gas, change of strength, change of durability, changes to crystal form, textural change, shape, size, color, volume and density.