Thermal Equilibrium (7.8B)

Front

What is thermal equilibrium?

Back

Thermal equilibrium is the state in which two objects in contact with each other reach the same temperature, resulting in no net heat transfer between them.

Front

How does heat transfer occur between two objects of different temperatures?

Back

Heat transfers from the object with a higher temperature to the object with a lower temperature until thermal equilibrium is reached.

Front

What are the three methods of heat transfer?

Back

Conduction, convection, and radiation.

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials.

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases) caused by differences in temperature.

Front

What is radiation?

Back

Radiation is the transfer of heat in the form of electromagnetic waves, such as infrared radiation.

Front

What happens to the temperature of ice when it is placed in warm water?

Back

The temperature of the ice increases as it absorbs heat from the warm water.

Front

What is the role of insulation in a house?

Back

Insulation minimizes heat transfer, helping to keep the house warm in winter and cool in summer.

Front

What is the significance of the specific heat capacity of a substance?

Back

Specific heat capacity is the amount of heat required to raise the temperature of a unit mass of a substance by one degree Celsius, indicating how much energy a substance can store.

Front

What is the formula for calculating heat transfer?

Back

Q = mcΔT, where Q is the heat transfer, m is the mass, c is the specific heat capacity, and ΔT is the change in temperature.