He can repeat his experiment multiple times, and ask a friend to repeat it as well to see if they get the same answer.
manganese The metal that is used as a sacrificial electrode to prevent the rusting of iron is manganese.
Answer:
In thermodynamics, the Joule–Thomson effect describes the temperature change of a real gas or liquid when it is forced through a valve or porous plug while keeping it insulated so that no heat is exchanged with the environment. This procedure is called a throttling process or Joule–Thomson process