Question

Explain why gases expand more than liquids and solids. in simple words

Answer 1

Answer:

The molecules of a solid are arranged in a tightly-packed, ordered lattice. The molecules experience some motion, but not much. It would be fair to say they have a greater attraction between themselves than do the molecules of liquids or gases. This is what gives matter classified as a solid its physical characteristics of being "solid": its molecules don't separate from each other. Liquids, on the other hand, have some attraction for each other, but their molecules are not arranged in the tightly constructed lattice solids have. A liquid's molecules will have a definite volume, but will assume the shape of the container they occupy. This is in direct contrast to the molecules of a solid which has both definite volume and definite shape. The molecules of a gas have no attraction between them whatsoever. Gases have neither definite volume nor definite shape. So, seeing the differences between the molecules of solids, liquids, and gases as they occur normally, when you add heat to the mix, it accentuates the properties that already exist The solids molecules will expand a little, but remain relatively close together, while the liquids molecules will expand even more so. Gases already have no attraction for each other, so their molecules will experience the greatest expansion.

Answer 2

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■ The Solids are made up of many tighty packed atoms and molecules. They have very high force of attraction between their particles. They have hight latice enthalpy. High energy is required to break their bonds. Due to their high Force of Attraction between the constituent particles they expands more.

■ Similarly, liquids have also high force of attraction but it is less than solids. So they expand more in comparison to solids.

■ Gases have very less intermolecular force of attraction. They gas molecules moves randomly in all possible directions and the distances between them are also very large as compared to solids and gases. Thus, they expand more than liquids and Solids.