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Which of the following statements is true according to the first law of thermody

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Question: Which of the following statements is true according to 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 an isolated system decreases.
  4. Heat and work are the same forms of energy.

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

Solution: 

The first law of thermodynamics states that energy can only be transformed from one form to another, not created or destroyed.

Which of the following statements is true according to the first law of thermody

Practice Questions

Q1
Which of the following statements is true according to 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 an isolated system decreases.
  4. Heat and work are the same forms of energy.

Questions & Step-by-Step Solutions

Which of the following statements is true according to the first law of thermodynamics?
Correct Answer: Energy can be transformed but not created or destroyed.
  • Step 1: Understand that the first law of thermodynamics is about energy.
  • Step 2: Know that energy can change forms, like from potential energy to kinetic energy.
  • Step 3: Remember that energy cannot be created from nothing or completely destroyed.
  • Step 4: Look for statements that say energy can only change forms, not be created or destroyed.
No concepts available.
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