What is the difference between Volatile and Non-Volatile substances?


The differences between Volatile and Non-Volatile substances are as follows:-

Volatile Substances Non-Volatile Substances
1. A volatile substance is one that readily evaporates or sublimates at room temperature or below. 1. A non-volatile substance refers to a substance that does not readily evaporates into gas under existing conditions.
2. Have a higher vapour pressure. 2. Have a low vapour pressure.
3. Have a low boiling point. 3. Have a high boiling point.
4. Have weaker intermolecular attractions. 4. Have strong intermolecular attractions.
5. When volatile liquids are heated or stored in an open container, the volume of it decreases.

5. When volatile liquids are heated or stored in an open container, the volume of it does not easily decrease.

6. It is usually highly flammable. 6. It is usually non-flammable.
7. It can be easily detected by smell. 7. It can't be easily detected by smell.
8. Examples- Alcohol, Mercury, and Gasoline. 8. Examples- Sugar, Oil and salt.

Updated on: 10-Oct-2022

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