What statement is true concerning the internal energy of a substance?

Correct Answer: Option C — The internal potential molecular energy of a substance is a function of the state of matter of the substance, whereas the internal kinetic molecular energy of a substance is a function of the temperature of the substance.

Under USCG National Maritime Center examination standards, the accepted correct answer is: The internal potential molecular energy of a substance is a function of the state of matter of the substance, whereas the internal kinetic molecular energy of a substance is a function of the temperature of the substance..