A man drove 9 miles directly east from his home, made a left turn at an intersection, and then traveled 6 miles due north to his place of work. If a road was made directly from his home to his place of work, what would its distance be?

Answer; carbon monoxide (co);

Answerδh > 0explanationc₆h₆  (s)  → c₆h₆ (l)if you are changing it from a solid to a liquid, you are pretty much melting the solid. this requires heat energy. therefore, the reaction is endothermic (takes in energy); the system enthalpy increases as the reaction proceeds: δh > 0.