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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 taken?

Options:

  1. First Law of Thermodynamics
  2. Second Law of Thermodynamics
  3. Hess\'s Law
  4. Gibbs Free Energy

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 taken.

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

Practice Questions

Q1
Which law states that the total enthalpy change for a reaction is the same, regardless of the number of steps taken?
  1. First Law of Thermodynamics
  2. Second Law of Thermodynamics
  3. Hess's Law
  4. Gibbs Free Energy

Questions & Step-by-Step Solutions

Which law states that the total enthalpy change for a reaction is the same, regardless of the number of steps taken?
  • 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 be broken down into smaller parts.
  • Step 3: Recognize that Hess's Law tells us that no matter how many steps a reaction takes, the total heat change will be the same as if it happened in one step.
  • Step 4: Remember the name of the law: Hess's Law.
No concepts available.
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