States of Matter and Changes of State

What is a gas?

• A gas is a state of matter with a definite shape and definite volume.

• A gas is a state of matter with an indefinite shape and indefinite volume.

• A gas is a state of matter that can only exist at high temperatures.

• A gas is a state of matter that is always visible and can be touched.

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What is a liquid?

• A state of matter with a definite volume and shape

• A state of matter that has a definite volume but takes the shape of its container

• A state of matter that has no definite volume or shape

• A state of matter that is always solid at room temperature

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What is the kinetic molecular theory?

• It states that matter is composed of indivisible atoms.

• It explains that matter is made up of particles that are in constant motion, and this motion is related to temperature.

• It describes how chemical reactions occur at the molecular level.

• It suggests that all matter is in a state of rest unless acted upon by an external force.

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What is deposition?

• The process where a gas changes directly into a solid without becoming a liquid first.

• The process where a solid changes into a gas without becoming a liquid first.

• The process where a liquid changes into a gas without becoming a solid first.

• The process where a gas changes into a liquid without becoming a solid first.

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What is condensation?

• The process where water vapor in the air cools and changes into liquid water, forming droplets.

• The process of water evaporating into vapor in the air.

• The process of ice melting into water.

• The process of water being absorbed by soil.

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What is plasma?

• A state of matter where gas is energized until atomic electrons are no longer associated with the nucleus.

• A liquid state of matter that has a fixed volume but no fixed shape.

• A solid state of matter that maintains a fixed shape and volume.

• A gaseous state of matter that is highly compressed and has a definite shape.

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What is viscosity?

• A measure of a fluid's resistance to flow.

• The temperature at which a liquid boils.

• The density of a fluid compared to air.

• The speed at which a fluid travels through a pipe.

What is the role of temperature in changes of state?

• Temperature determines the color of a substance.

• Temperature affects the energy of particles, influencing whether a substance is a solid, liquid, or gas.

• Temperature has no effect on the state of matter.

• Temperature only affects the volume of a substance.

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What is sublimation?

• A process where a liquid changes into a solid.

• A process where a solid changes directly into a gas without becoming a liquid first.

• A process where a gas changes into a liquid.

• A process where a solid changes into a liquid.

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What is the difference between evaporation and boiling?

• Evaporation occurs at the surface of a liquid at any temperature, while boiling occurs throughout the liquid at a specific temperature.

• Evaporation occurs throughout the liquid at any temperature, while boiling occurs at the surface of the liquid at a specific temperature.

• Evaporation and boiling are the same process that occurs at any temperature.

• Boiling occurs at the surface of a liquid, while evaporation occurs throughout the liquid.

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