Learning Objectives

Define, solid, liquid, and also gas.Explain differences amongst these three phases of matter.

You are watching: Does liquid have a definite volume

Why is the state the water different in every picture?

Why is the state that water various in every picture?

Water can take many forms. At short temperatures (below 0°C), it is a solid. When at “normal” temperatures (between 0°C and 100°C), that is a liquid. While in ~ temperatures above 100°C, water is a gas (steam).

The state the water is in depends upon the temperature. Every state (solid, liquid, and also gas) has its very own unique set of physics properties.

Matter and Its States

Matter typically exists in one of three states: solid , liquid , or gas . The state a given substance exhibits is likewise a physics property. Some substances exist as gases at room temperature (oxygen and also carbon dioxide), if others, choose water and mercury metal, exist as liquids. Most steels exist as solids in ~ room temperature. All substances have the right to exist in any of these three states. In addition to existing in one of the 3 states, matter can also undergo a change the state. A change of state occurs when matter is converted from one state to one more state for example when a fluid is converted to a gas or a heavy is converted to a liquid.

Note: Technically speak a fourth state of matter referred to as plasma exists, however it does not naturally happen on earth, so we will certainly omit it from our study here.


Liquids have the complying with characteristics:

no definite form (takes the form of its container)has definite volumeparticles are cost-free to relocate over each other, yet are still attracted to each other

A acquainted liquid is mercury metal. Mercury is one anomaly. That is the only metal we know of the is fluid at room temperature. Mercury additionally has an ability to stick to itself (surface tension) – a home all liquids exhibit. Mercury has a relatively high surface ar tension, which provides it really unique. Here you view mercury in its common liquid form.

Figure 2.6


If us were to warmth liquid mercury to its boiling suggest of 357°C, and also under the right push conditions, we would notice all corpuscle in the liquid state enter the gas state.


Gases have the following characteristics:

no definite shape (takes the shape of the container)no definite volumeparticles move in random activity with tiny or no attraction to each otherhighly compressibleSolid

Solids are defined by the adhering to characteristics:

definite form (rigid)definite volumeparticles vibrate roughly fixed axes

If us were to cool liquid mercury to its freezing allude of -39°C, and under the right push conditions, us would an alert all the the liquid particles would enter the hard state.

The video below mirrors this process.

As you have the right to see in the video, mercury deserve to be solidified once its temperature is brought to its freezing point. However, once returned to room temperature conditions, mercury does not exist in solid state because that long, and returns back to its more common liquid form.

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Three claims of issue exist – solid, liquid, and gas.Solids have a identify shape and also volume.Liquids have actually a identify volume, but take the shape of the container.Gases have actually no definite form or volume.



Use the web site to answer the adhering to questions:


Which material is a gas in ~ room temperature (25°C)?Which product is a solid at room temperature?Which material is a liquid at room temperature?What wake up to the movement of the particles together you boost the temperature?What happens to the movement of the particles as you diminish the temperature?



How numerous states of matter are there?What is a solid?What is a liquid?What is a gas?