What are the similarities and differences between solids and liquids?

Similarities: Effect on Objects Differences: Solids:

Pressure is related to the amount of pressure and the area of action, and is generated by pressure. Liquid: Produced by the gravity of the liquid, the difference from the solid is that the pressure of the liquid is the liquid weight directly above it (Note:

is directly above). So it has nothing to do with the area. It is related to density, depth, acceleration due to gravity.

Gas: The pressure is generated by the movement of molecules, that is, many molecules on the contact surface are caused by hitting the contact surface, so it is related to temperature, volume, and density. Other:

Solids can transfer pressure without changing the size, and liquids and gases can transfer pressure without changing the size. Under the same conditions, the pressure of the liquid is equal in all directions, and the pressure in the space filled with gas is equal everywhere. A solid is a state in which matter exists.

Compared with liquids and gases, solids have a relatively fixed volume and shape, and the texture is relatively hard. Generally, an object needs to reach a certain size to be called solid, but there is no clear rule for this size. Generally speaking, solids are macroscopic objects, except for some special low-temperature physical phenomena such as superconductivity and superliquid, solids as a whole do not show quantum mechanical phenomena.

Expansion and contraction of solids: Solids expand when heated and contract when cold Liquids are one of the four major forms of matter. It is not a definite shape and is often affected by the container.

However, its volume is fixed under constant pressure and temperature. In addition, the liquid exerts pressure on the sides of the container as it does on any other state of matter. This pressure is transmitted in all directions, not only does not decrease but increases along with the depth (the reason why the deeper the water, the greater the water pressure).

Heating or decompression generally vaporizes a liquid into a gas, such as heating water into water vapor. Pressurization or cooling generally causes a liquid to solidify and become a solid, such as cooling water into ice. However, pressurization alone does not liquefy all gases such as oxygen, hydrogen, helium, etc.

Have you ever seen water that is liquid, and if you have seen a stone, it is solid.

Differences: The liquid has no fixed shape and will change with the change of the container; Liquids can also flow.

Solids have a fixed shape and do not change with the change of the container; Solids also don't flow.

Similarities: Each liquid or solid has its own composition, and as long as the substance is determined, the composition is determined; And they're hard to compress.

Compared with liquids, the similarity is that both have a certain volume that is not easy to compress, the difference is that solids have a certain shape but no fluidity, while liquids have no certain shape but fluidity, solids have a certain shape but no fluidity, and liquids have no certain shape but fluidity.

The difference is that the former has a fixed form, the latter does not (metallic mercury is in a liquid state) and is denser than the latter.

The similarity between solids and liquids is that they both have a certain volume and are not easily compressed.

Solid molecules only vibrate in the equilibrium position, the molecular spacing is very small, the force between the sub-contours is very large, and the solid maintains a certain shape and a certain volume, and is not easy to be compressed.

The liquid molecules vibrate in the equilibrium position for a period of time, and then move to other positions to vibrate, the molecular spacing is larger than that of the solid state, the intermolecular force is smaller than that of the solid state, and the liquid maintains a certain volume of liquid Sakura, but it does not have a certain shape, and it is easy to be compressed.