If the value of H is positive, it means you have to add that much heat to complete the reaction. If H is negative, it means that much heat is released during the chemical process. Because it is -73 kJ, 73 kJ of heat are released in the reaction.
Answer:
Coefficient
Explanation:
I am not that sure, but just wanted to help.
having a lesser value by a process of depletion
A) the average global temp. Would decrease
