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Which of the following statements is true about the first law of thermodynamics?

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Question: Which of the following statements is true about the first law of thermodynamics?

Options:

  1. Energy can be created or destroyed.
  2. Energy can only be transformed from one form to another.
  3. The total energy of a closed system decreases.
  4. Heat and work are the same.

Correct Answer: Energy can only be transformed from one form to another.

Solution: 

The first law of thermodynamics states that energy cannot be created or destroyed, only transformed.

Which of the following statements is true about the first law of thermodynamics?

Practice Questions

Q1
Which of the following statements is true about the first law of thermodynamics?
  1. Energy can be created or destroyed.
  2. Energy can only be transformed from one form to another.
  3. The total energy of a closed system decreases.
  4. Heat and work are the same.

Questions & Step-by-Step Solutions

Which of the following statements is true about the first law of thermodynamics?
  • Step 1: Understand what the first law of thermodynamics is about. It deals with energy.
  • Step 2: Learn that the first law states energy cannot be created or destroyed.
  • Step 3: Recognize that energy can only change forms, like from potential energy to kinetic energy.
  • Step 4: Remember that this law applies to all energy systems, meaning it is universal.
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