• See the picture for details.
• Method B essentially favors the Second Law of Thermodynamics: by piecing together data.
• The deviation of the resulting outcome from the experiment:

Sound speed w ---2% deviation

Specific heat Cp ---6% deviation

• The Second Law of Thermodynamics tests the extent to which scientists accept theoretical errors: 6%. ？！
• Is the Second Law of Thermodynamics science or witchcraft?

• The properties of water and steam are the authoritative products that IAPWS has invested countless amounts of money to obtain.