NEET Chemistry Hess's Law MCQ Question
What does Hess's Law state about the change in enthalpy for a reaction that occurs in multiple steps?
It is the sum of the standard enthalpies of the intermediate reactions.
It depends on the total volume of the reactants used.
It is always a negative value regardless of the reaction.
It varies with temperature and pressure changes during the reaction.
Correct Answer
Detailed Explanation
Hess's Law states that the change in enthalpy is independent of the path taken and is equal to the sum of the standard enthalpies of the intermediate reactions, as mentioned in the provided context.
Found an issue with this question?
Related Questions
More from Hess's Law
More from
Calculate the Gibbs free energy change (∆G) for a reaction at 298 K if the enthalpy change (∆H) is -150 kJ/mol and the entropy change (∆S) is -400 J/m...
Which of the following statements about enthalpy is correct?
Which of the following statements about the First Law of Thermodynamics is correct?