Four Laws of Thermodynamics

Front

What is temperature a measure of?

Back

Temperature is a measure of the average kinetic energy of molecules in a substance.

Front

True or False: A slower particle has a lower energy than an identical, faster particle.

Back

True

Front

What process does heat travel from the sun to the earth?

Back

Heat travels from the sun to the earth by the process of radiation.

Front

How many laws of thermodynamics are there?

Back

There are 4 laws of thermodynamics.

Front

What does the first law of thermodynamics state about energy?

Back

The first law of thermodynamics states that energy is conserved.

Front

Define the second law of thermodynamics.

Back

The second law of thermodynamics states that the total entropy of an isolated system can never decrease over time.

Front

What is entropy?

Back

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

Front

Explain the third law of thermodynamics.

Back

The third law of thermodynamics states that as the temperature of a system approaches absolute zero, the entropy of a perfect crystal approaches zero.

Front

What is the zeroth law of thermodynamics?

Back

The zeroth law of thermodynamics states that if two systems are each in thermal equilibrium with a third system, then they are in thermal equilibrium with each other.

Front

What is the relationship between heat and work in thermodynamics?

Back

In thermodynamics, heat and work are both forms of energy transfer, but they are not the same; heat is energy transferred due to temperature difference, while work is energy transferred due to force acting over a distance.