NEET Chemistry Hess's Law MCQ Question
Which of the following statements regarding Hess's Law is correct?
Enthalpy changes for a reaction are independent of the path taken between reactants and products.
Hess's Law only applies to endothermic reactions.
The enthalpy change for a reaction is always positive.
Reversing a chemical equation does not affect the enthalpy change value.
Correct Answer
Detailed Explanation
Hess's Law states that the enthalpy change for a reaction is independent of the path between initial and final states, as it is a state function. This aligns with the principle that enthalpy is an extensive quantity and can be summed over multiple steps.
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