Which of the following rules states that the sum of the enthalpies of the individual steps of a reaction sequence is equal to the enthalpy of the overall reaction?
A. Aufbau principle
B. Hess's law
C. Hund's rule
D. Markovnikov's rule
B
The aufbau principle and Hund's rule govern the filling of electron orbitals. Markovnikov's rule is a result from organic chemistry. The question gives the definition of Hess's law.
