Table of Contents
- 1 What do solids have that liquids and gases do not?
- 2 Why gases have no free surface?
- 3 Why are liquids and gases fluids but not solids?
- 4 Why do liquids have only one free surface?
- 5 Why do solids have fixed shape but liquids and gases do not?
- 6 What’s the difference between a solid and a gas?
- 7 How are liquids and gases similar in structure?
What do solids have that liquids and gases do not?
Solids have a definite shape and volume. Liquids have a definite volume, but take the shape of the container. Gases have no definite shape or volume.
Why gases have no free surface?
Gases do not have free surface due to very less force of attraction between the molecules and the disperse nature of gas molecules do not allow the gases to have free surface.
Why do solids have any number of free surfaces and gases have no free surfaces at all?
In solids, molecules do not posses translatory motion. Therefore, they occupy fixed positions. As a result, they have any number of free surfaces. Therefore, they do not have fixed positions and do not posses translatory motion which is not random like gaseous molecules and the upper suface is free.
Why are liquids and gases fluids but not solids?
Liquids and gases are considered to be fluids because they yield to shearing forces, whereas solids resist them. A rock is an example of a solid. This rock retains its shape because of the forces holding its atoms together. (b) Atoms in a liquid are also in close contact but can slide over one another.
Why do liquids have only one free surface?
Liquid contains only one free surface. This is because the force of attraction is less between the atom which does not allow it have more than one free surface. For example, liquid occupies the shape of the container in which it is poured.
Why are solids not fluids?
The word fluid means- a substance that flows, changes shape, non-rigid and has no distinctive shape. As the solid materials do not do any of the mentioned above, they are not called fluids.
Why do solids have fixed shape but liquids and gases do not?
Solids have fixed shape due to strong intermolecular force of attraction between them. The liquids and gases have molecules with less intermolecular force of attraction and hence they can flow and take shape of the container.
What’s the difference between a solid and a gas?
gas are well separated with no regular arrangement. liquid are close together with no regular arrangement. solid are tightly packed, usually in a regular pattern. Particles in a: gas vibrate and move freely at high speeds. liquid vibrate, move about, and slide past each other. solid vibrate (jiggle)…
Why do some solids diffuse in liquids but not in gases?
A rule of thumb is “Like dissolves in Like”, ionic and bipolar solutes like to dissolve in ionic or polar solvents (what. Common table salt dissolves in water). On the other hand some solids transition from solid to gas without forming liquid. This process is called sublimation. For example naphthalene, camphor etc sublime in thin air.
How are liquids and gases similar in structure?
liquid are close together with no regular arrangement. solid are tightly packed, usually in a regular pattern. Particles in a: gas vibrate and move freely at high speeds. liquid vibrate, move about, and slide past each other. solid vibrate (jiggle) but generally do not move from place to place.