Honors U4 Zone 2: Enthalpy and Phase Change

What is a phase in the context of states of matter?

• A part of a system with uniform composition and properties

• A type of chemical reaction

• A measure of temperature

• A type of energy

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Match the following gas changes with their corresponding processes.

• Diffusion

• Gas turning into another gas

• Ionization

• Gas turning into plasma

• Condensation

• Gas turning into a liquid

• Deposition

• Gas turning into a solid

Tags

NGSS.MS-PS1-4

What is vapor in the context of states of matter?

• A solid in contact with its liquid

• A gas in contact with its liquid

• A liquid in contact with its solid

• A gas in contact with its solid

Tags

NGSS.MS-PS1-4

What is equilibrium in a closed system?

• When the rate of condensation is the same as the rate of vaporization

• When the temperature is constant

• When the pressure is constant

• When the volume is constant

Tags

NGSS.HS-PS1-6

What affects the equilibrium of vapor pressure?

• Temperature and intermolecular forces

• Volume and mass

• Color and texture

• Shape and size

What is equilibrium vapor pressure of a liquid?

• The pressure exerted by a vapor in equilibrium with its liquid at a given temperature

• The pressure exerted by a solid in equilibrium with its liquid

• The pressure exerted by a gas in equilibrium with its solid

• The pressure exerted by a liquid in equilibrium with its gas

What does the Law of Conservation of Energy state?

• Energy can be transformed in a change, but never created or destroyed

• Energy can be created and destroyed

• Energy can only be created

• Energy can only be destroyed

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

NGSS.HS-PS3-4

The role of a manometer in measuring vapor pressure is to (a)  

• It measures the pressure exerted by
• It measures the temperature of a li
• It measures the volume of a gas
• It measures the mass of a solid

During a physical change, energy is (a)  

• It is transformed
• It is destroyed
• It is created
• It remains unchanged

Match the following concepts with their descriptions.

• Density, hardness, and elasticity

• Chemical reactions and equations

• Melting, freezing, and evaporation

• Biological processes and energy

• Photosynthesis and cellular respiration

• Change in states of matter and energy

• Balancing reactants and products

• Physical properties of solids

Tags

NGSS.MS-LS1-6

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS1-5

NGSS.MS-PS3-4