I believe Enthalpy is the scientific term for the changes. The specific changes each item listed undergoes is hard to say correctly without knowing the options. Could you list the answers to choose from so I can get a better understanding of what they want in the answer?
I would say c would be the best.
The Aromatic hydrocarbon is the most common in nature.
Answer:
Comment which state you live in an I'll be able to help
Explanation: