Question

A gas has no free surface.

• A. True
• B. False

Answer 1

The correct option is A True

• As gas molecules have the least force of intermolecular attraction present between them.
• These molecules are very far away from each other and molecules are randomly moving in all directions.
• Also due to disperse nature of gas molecules, they do not form any free surface as particles are far apart from each other.

Due to less intermolecular force of attraction and disperse nature of gas molecules, these gas molecules do not form any free surface which is shown in the case of solids and liquids. Therefore, the given statement is false.