Phase Changes

What is the process of a gas turning into a liquid called?

• Evaporation

• Condensation

• Sublimation

• Precipitation

What is freezing?

• Freezing is the phase change where a liquid turns into a solid.

• Freezing is the process of heating a solid until it becomes a gas.

• Freezing is the phase change where a solid turns into a liquid.

• Freezing is the process of cooling a gas until it becomes a liquid.

What is condensation?

• The process where a gas turns into a liquid, releasing heat in the process.

• The process where a liquid turns into a gas, absorbing heat in the process.

• The process of freezing a liquid into a solid without heat exchange.

• The process of mixing two gases to form a liquid.

What is latent heat?

• The heat energy required for a phase change to occur without a change in temperature.

• The energy released during a chemical reaction.

• The energy required to raise the temperature of a substance by one degree Celsius.

• The energy needed to break chemical bonds in a substance.

What is the melting point?

• The temperature at which a solid turns into a liquid.

• The temperature at which a liquid turns into a gas.

• The temperature at which a solid becomes a plasma.

• The temperature at which a gas condenses into a liquid.

What is melting?

• Melting is the process of a liquid turning into a gas.

• Melting is the phase change where a solid turns into a liquid.

• Melting is the process of a solid becoming a gas without turning into a liquid.

• Melting is the phase change where a liquid turns into a solid.

What is the difference between endothermic and exothermic changes?

• Endothermic changes release heat, while exothermic changes absorb heat.

• Endothermic changes absorb heat from the surroundings, while exothermic changes release heat.

• Endothermic changes occur only in chemical reactions, while exothermic changes occur in physical changes.

• Endothermic changes are faster than exothermic changes.

What is the name of the phase change from solid to liquid?

• Melting

• Freezing

• Condensation

• Evaporation

What is the process of a liquid turning into a solid called?

• Melting

• Evaporation

• Freezing

• Condensation

What is an example of an exothermic change?

• Melting of ice, which absorbs heat.

• Condensation of gas into liquid, releasing heat.

• Evaporation of water, which absorbs heat.

• Heating of a solid to form a liquid, which absorbs heat.