Water can take countless forms. At short temperatures (below \(0^\texto \textC\)), it is a solid. When at "normal" temperature (between \(0^\texto \textC\) and \(100^\texto \textC\)), it is a liquid. While at temperatures over \(100^\texto \textC\), water is a gas (steam). The state thatwater is in counts upon the temperature. Every state has actually its very own unique set of physics properties. Matter typically exists in among three states: solid, liquid, or gas.

You are watching: Does a gas have a definite shape and volume


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Plasma: A fourth State of Matter

Technically speaking, a fourth state that matter referred to as plasma exists, however it does not naturally take place on earth, therefore we will omit it from our examine here.

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Liquids

If the particles of a substance have actually enough power to partially overcome intermolecular interactions, then the particles can move about each other while staying in contact. This defines the liquid state. In a liquid, the particles are still in near contact, therefore liquids have actually a definite volume. However, due to the fact that the particles deserve to move about each other rather freely, a liquid has actually no identify shape and takes a form dictated by its container.

Liquids have actually the following characteristics:

No definite form (takes the shape of that is container). Has actually definite volume. Particles are totally free to relocate over each other, however are still attracted to every other.

A acquainted liquid is mercury metal. Mercury is an anomaly. The is the only steel we understand of that is liquid at room temperature. Mercury also has an capacity to pole to itself (surface tension)—a property that every liquids exhibit. Mercury has actually a relatively high surface ar tension, which provides it an extremely unique. Right here you check out mercury in its typical liquid form.



Example \(\PageIndex1\)

What state or claims of issue does each statement, describe?

This state has actually a definite volume, however no identify shape. This state has no definite volume. This state allows the individual particles to move about while staying in contact.

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Solution

This statement defines the fluid state. This statement describes the gas state. This statement defines the fluid state.

Exercise \(\PageIndex1\)