Gas Behavior | MCQs

Explanation

When a gas is heated in a sealed cylinder:

• The temperature of the gas increases (by definition of heating).
• The average kinetic energy of the particles increases (as the temperature rises, the molecules move faster).
• The pressure inside the container increases (as the molecules move faster and collide more frequently with the container walls).

Explanation

According to the kinetic molecular theory, the pressure exerted by a gas is caused by the bombardment of gas molecules on the walls of the container.

The gas molecules are in constant motion, colliding with each other and the container walls, resulting in a force exerted on the walls.

This force is what we experience as pressure.

Explanation

• Gases are the state of matter that takes both the shape and volume of a container they are placed in. They expand to fill the container and conform to its shape.
• Liquids, take the shape of a container but maintain their own volume.
• Solids maintain both their shape and volume, regardless of the container they are placed in.