Which statement is true when measuring enthalpy?

A. Enthalpy is measured directly.
B. Entropy is measured.
C. pH change is measured.
D. The enthalpy change is measured.

Question

Which statement is true when measuring enthalpy?

 A. Enthalpy  is measured directly. 
 B. Entropy is measured. 
 C. pH change is measured. 
 D. The enthalpy change is measured.

photon336 · Answer

Enthalpy is measured as the change in energy of the products-reactants

rushwr · Answer

I think it is the 4th answer. what we always measure is the change of enthalpy right? Even when we take it from the ground state we consider the ground state as zero and proceed our calculations .