Name: Process of Sublimation
Uploaded: 2019-07-19
Duration: 3 min 57 s
Description: Sublimation is converting a substance directly from the solid to the gaseous state of matter without passing through the liquid state. Watch this video.

Question

What are the factors governing the states of matter? Explain how these factors influence the states of matter.

Accepted Answer

The two important factors which governs the state of matter are:

Temperature.

Pressure.

They will affect the inter-particle spaces of a substance and in-turn affect the physical state.

When the temperature of a substance is increased, it can change its state from solid to liquid (melting), liquid to gas (vapourisation), or solid to gas (sublimation) and when the temperature is decreased, gas to liquid (condensation) or liquid to solid (freezing) will occur.

Similarly, pressure also determines the state of matter of a substance. The gases are liquefied by increasing pressure and decreasing temperature. On increasing pressure, the molecules come close together, the distances between the molecules decreases and the force of attraction between the molecules increases. Thus, increasing or decreasing the pressure can change the state of matter.

What are the factors governing the states of matter? Explain how these factors influence the states of matter.

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