Phase Diagrams

Match the following

• take both the shape and volume of their container – they expand to fill it completely

• Solids

• have a fixed shape and volume unrelated to the container

• Liquids

• take the shape of their container – but have a fixed volume unrelated to the container

• Gases

Tags

NGSS.MS-PS1-4

Match the following

• have no organization and are extremely mobile

• Solids

• have some organization and the molecules do move, but less than gases

• Gases

• have high organization (called a lattice) but are rigidly held in place by intermolecular bonds

• Liquids

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Intermolecular Forces (IMFs) are usually due to bond polarity

More polar bonds create more IMFs

Polar bonds set up attractions between molecules

• An IMF of somewhere in between

• Liquids

• tend to not have IMFs (or very weak ones)

• Gases

• have strong IMFs

• Solids

In order to turn a solid into a liquid, an amount of energy known as the ____ __ _____ must be added to the material

• heat of fusion

• heat of vaporization

• heat of gas

• condensation

To go from a liquid to the gas state, an amount of energy known as the ______ __ ______ must be added (and removed to go from gas to liquid

• heat of fusion

• heat of vaporization

• heat of sublimination

• condensation

Tags

NGSS.MS-PS1-4

To go from a solid directly to a gas, we add the _____ __ ______ (and remove it to go from a gas to a solid)

• heat of fusion

• heat of vaporization

• heat of sublimination

• condensation

The temperature at which a gas can no longer be compressed is called the _____ ________.

• critical temperature

• critical pressure

• supercritical

The pressure needed to compress a liquid at its critical temperature is called the _____ ______

• critical temperature

• critical pressure

• supercritical

Beyond this point (temperature & pressure) the fluid is referred to as _____ _____

• critical temperature

• critical pressure

• supercritical