Apentix/AP Chemistry/Unit 6: Thermodynamics/Question
AP Chemistrymediummcq1 pt

According to Hess's Law:

A.The enthalpy change of a reaction is the same regardless of the pathway
B.The equilibrium constant equals the rate constant
C.Entropy always increases in spontaneous reactions
D.The rate of reaction depends only on temperature

Explanation

Core Concept

Hess's Law states that the total enthalpy change for a reaction is the same regardless of the number of steps or the pathway taken, because enthalpy is a state function.

Correct Answer

AThe enthalpy change of a reaction is the same regardless of the pathway

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