Flashcardizz Practice Unit 3 Lesson 5: Heat of Phase Changes

Front

What is the definition of heat in the context of phase changes?

Back

Heat is the energy transferred between substances or systems due to a temperature difference.

Front

What is the specific heat capacity of a substance?

Back

Specific heat capacity is the amount of heat required to raise the temperature of 1 gram of a substance by 1 degree Celsius.

Front

Which metal would have the highest final temperature if all started at the same temperature and received the same amount of heat?

Back

The metal with the lowest specific heat capacity will have the highest final temperature.

Front

What is convection in terms of heat transfer?

Back

Convection is the transfer of heat by the movement of fluids (liquids or gases).

Front

What is the boiling point of a substance?

Back

The boiling point is the temperature at which a substance changes from a liquid to a gas.

Front

What is the freezing point of a substance?

Back

The freezing point is the temperature at which a substance changes from a liquid to a solid.

Front

What is an endothermic reaction?

Back

An endothermic reaction is a chemical reaction that absorbs heat from its surroundings.

Front

How does the heating curve of a substance illustrate phase changes?

Back

The heating curve shows the temperature changes of a substance as it absorbs heat, indicating phase changes at specific temperatures.

Front

What happens to the temperature of a substance during a phase change?

Back

The temperature remains constant during a phase change, even though heat is being added or removed.

Front

What is the relationship between heat and temperature?

Back

Heat is the energy transferred due to temperature differences, while temperature is a measure of the average kinetic energy of particles.