States of Matter: Solid and Liquid

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Questions and Answers

Solids have a definite shape and volume.

True (A)

Liquids have a definite shape but not a definite volume.

False (B)

Gases are highly compressible.

True (A)

Plasma is the least common state of matter in the universe.

<p>False (B)</p> Signup and view all the answers

Melting is the transition from liquid to solid.

<p>False (B)</p> Signup and view all the answers

Vaporization is the transition from liquid to gas.

<p>True (A)</p> Signup and view all the answers

In crystalline solids, the particles are arranged randomly.

<p>False (B)</p> Signup and view all the answers

Surface tension is a measure of a liquid's resistance to flow.

<p>False (B)</p> Signup and view all the answers

The temperatures at which phase transitions occur are called transition temperatures.

<p>True (A)</p> Signup and view all the answers

Melting occurs when a solid releases heat.

<p>False (B)</p> Signup and view all the answers

Evaporation is vaporization occurring at the surface of a liquid.

<p>True (A)</p> Signup and view all the answers

Sublimation is when a liquid transforms directly into a gas.

<p>False (B)</p> Signup and view all the answers

Phase diagrams show the equilibrium conditions for transitions between different phases.

<p>True (A)</p> Signup and view all the answers

According to kinetic molecular theory, collisions between gas particles result in lost energy.

<p>False (B)</p> Signup and view all the answers

The heat of fusion is the amount of energy required to melt one mole of a substance.

<p>True (A)</p> Signup and view all the answers

Flashcards

Transition Temperature

Temperature at which a substance changes from one state (solid, liquid, gas) to another.

Melting Point

The temperature at which a solid turns into a liquid.

Boiling Point

The temperature at which a liquid boils and turns into a gas.

Sublimation

Direct transition from solid to gas, skipping the liquid phase.

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Phase Diagram

Graphical representation of physical states of a substance under different temperatures and pressures.

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Kinetic Molecular Theory

All matter is composed of tiny particles in constant motion.

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Heat of Fusion

The amount of heat required to change one mole of a substance from solid to liquid.

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Solid

A state of matter with definite shape and volume, where particles are closely packed in fixed positions.

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Liquid

A state of matter with definite volume but no fixed shape; it takes the shape of its container.

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Gas

A state of matter with no definite shape or volume, expanding to fill its container.

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Plasma

An ionized gas containing free ions and electrons; the most common state of matter in the universe.

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Melting

The transition from solid to liquid, requiring heat absorption.

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Freezing

The transition from liquid to solid, releasing heat.

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Vaporization

The transition from liquid to gas, requiring heat absorption.

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Condensation

The transition from gas to liquid, releasing heat.

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Study Notes

The provided text contains no new information, so the existing study notes are still accurate and comprehensive. No updates are necessary.

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