Difference Between Physical Change and Chemical Change

What is Physical Change?

Physical changes are the changes that affect the form of a chemical substance but not its chemical composition. The use of physical change is to disperse the mixture into their component compounds, but they cannot normally be used for the parting of compounds into simpler compounds or chemical elements.

In simple words, the kind of change where matter changes into other form without changing its chemical properties is known as physical change.

The properties like shape, size, state, density, solubility, luster, mass, volume and color of a substance are called its physical properties. The change in which a substance modifies its physical properties called physical change- For example; Crystallization.

Whenever substances or objects undergoes a chemical change, which does not alter their chemical composition, a physical change occurs.

The physical change only changes the substance's appearance, not it's chemical composition. A physical change means variations in physical properties. Physical change example, change of strength, color, melting, change of durability, volume, density, transaction to a gas, shape, size, textural change, change to crystal form.

What is Chemical Change?

When one chemical substance is changed into another substance, like when iron becomes rust, then this process is known as chemical change. Chemical changes are not simple to reverse or irreversible; therefore, it is said as a permanent change. Such changes lead to changes in physical and chemical properties, such as temperature, color, shape, taste, melting point, boiling point etc.

Through the process of chemical reactions, chemical changes occur. As a result, the substance has distinct properties because its atoms and molecules are differently arranged.

Example of Chemical Change

• Baking a cake
• Burning a candle
• Sourcing milk
• Rusting iron
• Mixing acid with base

Difference Between Physical Change and Chemical Change