Which law states that the total enthalpy change for a reaction is the same, rega

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Question: Which law states that the total enthalpy change for a reaction is the same, regardless of the number of steps in the reaction?

Options:

Correct Answer: Hess\'s Law

Solution:

Hess\'s Law states that the total enthalpy change for a reaction is the same, regardless of the number of steps in the reaction.

Which law states that the total enthalpy change for a reaction is the same, regardless of the number of steps in the reaction?

Which law states that the total enthalpy change for a reaction is the same, regardless of the number of steps in the reaction?

Correct Answer: Hess's Law

Step 1: Understand what enthalpy change means. It is the heat content change during a chemical reaction.
Step 2: Learn about reactions that can happen in multiple steps. Some reactions can occur in several smaller reactions instead of one big reaction.
Step 3: Know that Hess's Law is a principle in chemistry.
Step 4: Hess's Law states that the total enthalpy change for a reaction is the same, no matter how many steps the reaction takes.
Step 5: This means you can add up the enthalpy changes of each step to find the total change for the overall reaction.

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