Phase changes

What is condensation?

• The process of a liquid turning into a gas.

• The phase change from solid to liquid.

• The phase change from gas to liquid.

• The process of a gas turning into plasma.

What is evaporation?

• Evaporation is the phase change from liquid to gas.

• Evaporation is the process of freezing water into ice.

• Evaporation is the transformation of gas into liquid.

• Evaporation is the process of condensation of vapor into liquid.

What happens to particles when the temperature of matter increases?

• The particles slow down and move closer together.

• The particles speed up and move farther apart.

• The particles remain stationary and do not change position.

• The particles change color and become more visible.

What happens to particles when the temperature of matter decreases?

• The particles speed up and move further apart.

• The particles slow down and move closer together.

• The particles remain unchanged in position and speed.

• The particles vibrate more rapidly and expand.

What is the relationship between temperature and particle movement?

• As temperature increases, particle movement speeds up; as temperature decreases, particle movement slows down.

• Temperature has no effect on particle movement.

• As temperature increases, particle movement slows down; as temperature decreases, particle movement speeds up.

• Particle movement is only affected by pressure, not temperature.

How does pressure affect boiling point?

• Increasing pressure lowers the boiling point of a liquid.

• Increasing pressure raises the boiling point of a liquid.

• Pressure has no effect on the boiling point of a liquid.

• Increasing pressure causes the boiling point to fluctuate.

What is the difference between boiling and evaporation?

• Boiling occurs at any temperature, while evaporation occurs at a specific temperature.

• Boiling occurs at a specific temperature throughout the liquid, while evaporation can occur at any temperature at the surface of the liquid.

• Boiling is a slow process, while evaporation is instantaneous.

• Boiling happens only in open containers, while evaporation can happen in closed containers.

What is the significance of the freezing point?

• It is the temperature at which a liquid becomes a gas.

• It is the temperature at which a liquid becomes a solid.

• It is the temperature at which a solid becomes a liquid.

• It is the temperature at which a gas condenses into a liquid.

What is the freezing point of a substance?

• The temperature at which a substance in the liquid state freezes is the same as the temperature at which the substance melts.

• The temperature at which a substance boils and turns into gas.

• The temperature at which a substance changes from solid to liquid.

• The temperature at which a substance can no longer hold its shape.

What is melting?

• The process of freezing a liquid into a solid.

• The phase change from solid to liquid.

• The process of evaporating a liquid into gas.

• The transition of gas to solid without becoming liquid.