Give reason -. A gas fills completely in the vessel in which it is kept.

2. A gas exerts pressure on the walls of the container.

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Solution

1 ) The force of attraction between particles of gas is negligible. Because of this, particles of gas move in all directions. Thus, a gas fills the vessel completely in which it is kept.

2) Because of negligible force of attraction between particles of gas, the particles of gas have the highest kinetic energy. These properties enable the particles of gas to move in all directions and hit the walls of container from all sides. Because of this a gas exerts pressure on the walls of the container in which it is kept.

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Give reason -. A gas fills completely in the vessel in which it is kept. 2. A gas exerts pressure on the walls of the container.

Give reason -. A gas fills completely in the vessel in which it is kept.

2. A gas exerts pressure on the walls of the container.