Question

expansion in gases.....?​

Answer 1

Answer:

Molecules within gases are further apart and weakly attracted to each other. ... Heat causes the molecules to move faster, (heat energy is converted to kinetic energy ) which means that the volume of a gas increases more than the volume of a solid or liquid.

HOPE THIS HELPS YOU IF YES MARK MY ANSWER AS THE BARINLIST ANSWER.

Answer 2

Answer:

4.12 Thermal Expansion of Gases

Chemical Concepts Demonstrated: Volume changes of a gas due to cooling and heating

Demonstration:

Liquid nitrogen or dry-ice/acetone is poured over a balloon.

Observations:

The volume of the balloon significantly decreases. When the balloon is removed from the liquid nitrogen, it regains its volume.

Explanations:

A gas expands when heated and condenses when cooled. Charles' Law predicts a four-fold decrease in the volume of a gas that is cooled from room temperature to the temperature of liquid nitrogen (77 K). If the gas inside the balloon condenses into a volatile liquid at or around 77 K, the volume change will be even larger.

Removing the balloon exposes the cold balloon to higher temperatures. The resulting thermal expansion fills the balloon to its original size again.