Define the term given below and answer the question associated with them: a) Sublimation: which of the following substances sublime? Ice, Mercury, dry ice, Iodine b) Solid: why do not solid diffuse in one another? c) liquid: why do liquids flow? d) freezing point: what is the freezing point of water? e) gas: why are gases compressible and show diffusion?

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Answer

Answers:

Sublimation:

Iodine

Dry ice

Solid:

Solids do not diffuse in one another because they have a fixed shape and volume due to their closely packed molecules. The molecules in a solid have strong attractive forces between them, which prevent them from moving around and mixing with molecules from another solid.

Liquid:

Liquids flow because their molecules are loosely packed and can move around each other. The attractive forces between molecules are weaker than in solids, allowing them to move more easily. The intermolecular forces in liquids are strong enough to keep the molecules in close proximity to one another, but not so strong that they cannot move around.

Freezing point:

The freezing point of water is 0°C or 32°F.

Gas:

Gases are compressible because the molecules in a gas are far apart from each other and have weak attractive forces. When pressure is applied to a gas, the molecules can be pushed closer together, reducing the volume of the gas. Gases show diffusion because their molecules are in constant motion and can move randomly in any direction. This allows gases to mix with other gases and spread out to fill any available space.

Answer

thx

Answer

sublimation :the process by which solid state changes directly to gagseous state is calle sublimationex:dry iceliquids are flow in naturesolids particles are packed tightly so they won't diffuse each some substance only can

Answer

the process of changing the solid directly into gas without going through liquid and vice versa is called sublimation.mercury ,dry ice and iodine sublime.because they have not much kinetic energy to be diffused.because the particles of liquid continuously move as they have little kinetic energy.freezing point of water is 0c.because they have large intermolecular space to be diffused and high kinetic energy and thus show diffusion.

Answer

A) The process of changing solid directly into vapour is called dry ice sublimes and it is used to create special effect on the stage.
B) Solid cannot diffuses in one another because of the Thier properties that they are rigid, particle are tightly packed, and they don't have intermolecular space between them.
C) Liquids flow because its particles are able to slide over one another due to slightly weaker interparticle force of attraction.
D) It is the temperature at which liquids turns into solid on cooling is called freezing point.The freezing point of water is 0 degree Celsius.
E) Gases are compressible because it's particles are far apart and there are large spaces between them. Diffusion in gases are very fast , because the particles in gases move very quickly in all directions.

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