Which of the following laws of thermodynamics defines the term internal energy?

Define first law of thermodynamics.

Define first law of thermodynamics.

Define zeroth law of thermodynamics.

Define zeroth law of thermodynamics.

Apply the first law of thermodynamics to determine the change in internal energy during the melting process.

Apply the first law of thermodynamics to deermine the change in internal energy during the boiling process.