Question
Physical Chemistry Question on Thermodynamics
Which statement correctly describes Hess's Law?
A
The enthalpy of all reactants in their standard states is defined as zero
B
Enthalpy changes can be calculated only if one or more of the reactants is/are element
C
The enthalpy change of a reaction can be calculated only at 1 atm pressure and 25 °C
D
The enthalpy change of a reaction is independent of the route of reaction
Answer
The enthalpy change of a reaction is independent of the route of reaction
Explanation
Solution
The correct answer is option (D) : The enthalpy change of a reaction is independent of the route of reaction