Why is the process of examining enthalpies of a reaction helpful?

Question

A. It helps in determining how a reaction occurs spontaneously.
B. It helps in determining the temperature that a reaction requires to proceed.
C. It helps in determining how fast a reaction will proceed.
D. It helps in determining which metal uses less energy during refining.

Answer 1

the answer was d It helps in determining which metal uses less energy during refining.