If the temperature rises high enough, the material transforms from the solid state to the liquid state. If the temperature rises even higher, the molecules move faster and become even more spread out. At this point, the substance becomes a gas, which also requires a container to retain its shape. World View. More From Reference. Initially, the water level in the capillary falls. Let it falls to point B.
After that, water level begins rising and it rises above the initial level. Let it rises up-to point C. The fall in water level in the capillary in the beginning of the heating is due to the expansion of the capillary. It is because the capillary tube which is made up of glass expands more rapidly than water. Expansion and Contraction in Solids, Liquids and Gases.
Learning Objective In this lesson we will learn how temperature changes affect the volume of solids, liquids and gases. Learning Outcomes By the end of this lesson you will be able to: Describe the relationship between heat energy, movement of particles and the volume of a substance.
Use the particle model to explain expansion and contraction of solids, liquids and gases. Compare expansion and contraction in solids, liquids and gases.
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