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    States of Matter and Changes of State

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    Shaniya Rome
    The document describes the three common states of matter - solids, liquids, and gases. It defines each state based on their distinct properties including shape, volume, and how close or far apart the atoms are. It then explains the various types of changes of state that can occur, such as melting, vaporization, sublimation, etc. It notes that during a change of state, the mass of the substance remains constant as energy is either absorbed or released as the atoms gain or lose kinetic energy, changing their motion and distance from each other.

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    © All Rights Reserved
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    States of Matter and Changes of State

    Uploaded by

    Shaniya Rome
    34 views19 pages
    The document describes the three common states of matter - solids, liquids, and gases. It defines each state based on their distinct properties including shape, volume, and how close or far apart the atoms are. It then explains the various types of changes of state that can occur, such as melting, vaporization, sublimation, etc. It notes that during a change of state, the mass of the substance remains constant as energy is either absorbed or released as the atoms gain or lose kinetic energy, changing their motion and distance from each other.

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    The document describes the three common states of matter - solids, liquids, and gases. It defines each state based on their distinct properties including shape, volume, and how close or far apart the atoms are. It then explains the various types of changes of state that can occur, such as melting, vaporization, sublimation, etc. It notes that during a change of state, the mass of the substance remains constant as energy is either absorbed or released as the atoms gain or lose kinetic energy, changing their motion and distance from each other.

    Copyright:

    © All Rights Reserved
    Download as PPTX, PDF, TXT or read online from Scribd
    Download as pptx, pdf, or txt
    34 views19 pages

    States of Matter and Changes of State

    Uploaded by

    Shaniya Rome
    The document describes the three common states of matter - solids, liquids, and gases. It defines each state based on their distinct properties including shape, volume, and how close or far apart the atoms are. It then explains the various types of changes of state that can occur, such as melting, vaporization, sublimation, etc. It notes that during a change of state, the mass of the substance remains constant as energy is either absorbed or released as the atoms gain or lose kinetic energy, changing their motion and distance from each other.

    Copyright:

    © All Rights Reserved
    Download as PPTX, PDF, TXT or read online from Scribd
    Download as pptx, pdf, or txt
    of 19

    States of Matter

    @earthscience92
    I will be able to define and describe matter and the
    three states of matter.
    What are the states of Matter?
    • Matter
    – All matter is made of atoms.
    – Atoms are in constant motion.
    – Particle movement
    determines the state of
    matter.

    • States of Matter.
    – Solid
    – Liquid
    – Gas
    I will be able to define and describe matter and the
    three states of matter.
    What are the states of Matter?
    • Solids
    – Shape:
    • Definite
    – Volume:
    • Definite
    – Atoms:
    • Very close together.
    • Vibrate in place.
    – Exception:
    • Water, ice has more space
    between atoms than liquid
    water. That is why it
    _______________.
    I will be able to define and describe matter and the
    three states of matter.
    What are the states of Matter?
    • Liquids
    – Shape:
    • Not definite
    – Volume:
    • Definite
    – Atoms:
    • Further apart
    • Move, have more kinetic
    energy.
    Kinetic energy is the energy
    of motion.
    I will be able to define and describe matter and the
    three states of matter.
    What are the states of Matter?
    • Gases
    – Shape:
    • Not definite
    – Volume:
    • Not Definite
    – Atoms:
    • Moving very fast.
    • Most kinetic energy.
    – Move faster when heat
    is applied.
    – Move slower when
    heat is taken away.
    I will be able to explain what a change in state is
    and describe how matter changes state.
    What is a change in State?
    • Changes in States
    – A change of a substance
    from one physical state to
    another.

    – Examples:
    • Water vapor to liquid
    water.
    • Liquid water to ice.
    I will be able to explain what a change in state is
    and describe how matter changes state.
    What is a change in State?
    • Energy Gained or Lost
    – To change state, energy
    must be added or
    removed.
    – Gaining or losing energy
    changes the temperature
    of a substance.
    I will be able to explain what a change in state is
    and describe how matter changes state.
    What happens to matter when a change of state occurs?
    • Energy / Motion of Parti
    cles.
    – Energy of the particles
    change.
    – The speed and the
    distance between
    particles change.
    I will be able to explain what a change in state is
    and describe how matter changes state.
    What happens to matter when a change of state occurs?
    • Energy / Motion of Particles.
    • Solids
    – Vibrate in place, particles close together
    • Liquids
    – Move around
    – Particles further apart.
    • Gas-
    – Move quickly
    – Particles very far apart
    I will be able to explain what a change in state is
    and describe how matter changes state.
    What is a change in State?
    • Melting
    – Solid becomes liquid.

    – Energy is added
    • Particles speed up.
    • Temperature rises

    – Melting point
    • Temperature at which a
    substance changes from a
    solid to a liquid.
    I will be able to explain what a change in state is
    and describe how matter changes state.
    What is a change in State?
    • Vaporization
    – Process by which liquids
    or solids change to a gas.
    I will be able to explain what a change in state is
    and describe how matter changes state.
    What is a change in State?
    • Sublimation
    – Change in state from a solid
    directly into a gas. (skips
    liquid phase)
    • Add heat
    • Atoms gain energy
    • Escape into the air as a gas.
    • Example: Dry Ice
    I will be able to explain what a change in state is
    and describe how matter changes state.
    What is a change in State?
    • Evaporation
    – Add heat to a liquid
    • Atoms gain energy.
    • Move faster

    – Evaporation
    • Particles can escape from
    the surface of a liquid if
    enough heat is added.
    I will be able to explain what a change in state is
    and describe how matter changes state.
    What is a change in State?

    • Boiling
    – A rapid change from a
    liquid to a gas (vapor)

    – Boiling Point
    • The temperature at
    which this occurs in a
    liquid.
    – 100°C
    – 212°F
    I will be able to explain what a change in state is
    and describe how matter changes state.
    What is a change in State?
    • Condensation
    – The change in state from
    a gas to a liquid.
    • Cooling a gas
    • Particles lose energy.
    I will be able to explain what a change in state is
    and describe how matter changes state.
    What is a change in State?
    • Deposition
    – Change in state from a
    gas directly to a solid.
    • Substance cools.
    • Atoms lose energy
    • No liquid forms in the
    process.
    • Example:
    – Water vapor turns into
    ice crystals.
    I will be able to explain what a change in state is
    and describe how matter changes state.
    What is a change in State?
    • Freezing
    – Liquid becomes solid.

    – Loss of energy.
    • Particles slow down
    • Temperature cools

    – Freezing point
    • Temperature at which a
    substance changes into a
    solid.
    • Water = 0C or 32F
    I will be able to explain what a change in state is
    and describe how matter changes state.
    What happens to matter when a change of state occurs?
    • Mass is Conserved
    – The amount of matter
    stays the same during a
    phase change.

    – The mass does not change


    when its state changes.

    – Each state contains the


    same amount of matter.
    I will be able to explain what a change in state is
    and describe how matter changes state.
    What happens to matter when a change of state occurs?
    • Mass is Conserved

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