Hess's law is based on what principle?
A) conservation of mass
B) conservation of energy
C) conservation of entropy
D) conservation of neutrality

Respuesta :

Answer is B, (Conservation of energy).

According to Hesss Law," For a chemical reaction the enthalpy change is independent of the path followed".

Below figure shows,
 
                                      ΔHf = ΔH₁ + ΔH₂ + ΔH₃
Ver imagen transitionstate