Which state of matter has no definite volume or definite shape but expands to fill the available volume of a container?

Gases

Explanation: There are three states of matter:

1.Solid state : In this state, the molecules are arranged in regular and repeating pattern. They have fixed volume and fixed shape.

2. Liquid state : In this state, the molecules are present in random and irregular pattern.  They have fixed volume but acquire the shape of the container.

3. Gaseous state : In this state, the molecules are present in irregular pattern. They have neither fixed shape nor volume. They fill the entire volume available.

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2b2t

explanation:

2b2t