Heat & Thermodynamics Assignment

Front

What is the third law of thermodynamics?

Back

No system can reach absolute zero.

Front

As a system becomes more disordered, what happens to entropy?

Back

Entropy increases.

Front

Which state of H2O has the greatest entropy?

Back

Vapor.

Front

In which direction is heat flowing if a hand is touching ice?

Back

From the hand to the ice.

Front

If a red-hot thumbtack is immersed in warm water, where does the heat flow?

Back

From the red-hot thumbtack to the warm water.

Front

Define entropy in thermodynamics.

Back

Entropy is a measure of the disorder or randomness in a system.

Front

What is absolute zero?

Back

Absolute zero is the theoretical temperature at which a system's entropy reaches its minimum value, equivalent to 0 Kelvin.

Front

Explain the concept of heat transfer.

Back

Heat transfer is the movement of thermal energy from one object or substance to another due to a temperature difference.

Front

What is thermal equilibrium?

Back

Thermal equilibrium is the state in which two objects in contact with each other reach the same temperature and no heat flows between them.

Front

What is the difference between conduction, convection, and radiation?

Back

Conduction is heat transfer through direct contact, convection is heat transfer through fluid movement, and radiation is heat transfer through electromagnetic waves.