Phase Change Calculations

By POINT E, the substance is completely in the ____ phase.

Tags

NGSS.MS-PS1-4

As a change of state, from solid to liquid, takes place heat _____ and temperature _______.

• increases, stays the same

• stays the same, stays the same

• stays the same, changes

• increases, increases

Tags

NGSS.MS-PS1-4

As heated is added to the substance does the temperature always increase?

• Yes it always increases

• No it does not increase during the phase change

• It never increases

• It always stays the same.

Tags

NGSS.MS-PS1-4

All changes in the state of matter of a substance requires

• vibration

• water

• permission

• energy

Tags

NGSS.MS-PS1-4

Based on the heating curve, what happens to the particles within a substance as it changes from a liquid to a gas?

• When changing to a gas, the particles within a substance break free of each other, move randomly and freely, with no defined volume.

• As the temperature decreases, the particle vibrations within a substance increases, causing them to move faster and more freely.

• When changing to a gas, the particles within a substance slide past each other, move randomly and freely, with a defined volume

• Intermolecular forces hold the particles within the substance close together during the phase change. 

Tags

NGSS.MS-PS1-4

Material in this phase has _________ volume and ____________ shape.

Tags

NGSS.MS-PS1-4

When a gas begins to condense through condensation, what happens to the heat in the particles.

• The heat leaves the gas as it condenses.

• The heat goes into the gas as it condenses.

• The heat stays the same as it condenses.

• None of the above.

Tags

NGSS.MS-PS1-4

What is the heat required to change 1 kg of ice at 0°C to water at 0°C?

• 334,000 J

• 226,000 J

• 418,000 J

• 540,000 J

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

During the phase change from liquid to gas, what happens to the temperature of the substance?

• Increases

• Decreases

• Stays the same

• Fluctuates

Tags

NGSS.MS-PS1-4

Which of the following best describes the process of sublimation?

• Solid to liquid

• Liquid to gas

• Solid to gas

• Gas to liquid

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4