Question Detail

CHM 101 Thermochemistry II Objective Question
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Question

What does Hess's Law state?
Options
A Enthalpy depends on the reaction path
B The overall enthalpy change for a reaction carried out in a series of steps is equal to the sum of the enthalpy changes of all individual steps
Correct Answer
C Enthalpy cannot be calculated
D Heat is always constant
Correct Answer

Option B is the correct answer.

Detailed Explanation

Hess's law states that the overall enthalpy change for a reaction that is carried out in a series of steps is equal to the enthalpy changes of all individual steps. ΔH_total = ΣΔH_steps.

Hint

The notes define Hess's Law.

Question Info

Course: CHM 101
Topic: Thermochemistry II
Type: Objective
Difficulty: Not specified
Question 816 of 1872
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