Question

The enthalpy change of a reaction does not depend on:

• A. initial and final state of the reaction
• B. state of the reactants and products
• C. nature of the reactants
• D. different intermediate states

Answer 1

The correct option is D different intermediate states

The enthalpy change of a reaction is the value of the energy required or released during a reaction.
Since, the value depends only on the energy of the reactants and products and is given by,
$\Delta \text{H = (energy of products) - (energy of reactants)}$
So, it a function of only initial reactants and final products and thus it does not depend on any intermediate products energy.
Hence, the answer is $D$.