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Which of the following statements is NOT a consequence of the first law of therm

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Question: Which of the following statements is NOT a consequence of the first law of thermodynamics?

Options:

  1. Energy can be converted from one form to another
  2. The total energy of an isolated system is constant
  3. Heat can spontaneously flow from cold to hot
  4. Work done on a system increases its internal energy

Correct Answer: Heat can spontaneously flow from cold to hot

Solution: 

The first law states that energy is conserved, and heat cannot spontaneously flow from cold to hot without work being done.

Which of the following statements is NOT a consequence of the first law of therm

Practice Questions

Q1
Which of the following statements is NOT a consequence of the first law of thermodynamics?
  1. Energy can be converted from one form to another
  2. The total energy of an isolated system is constant
  3. Heat can spontaneously flow from cold to hot
  4. Work done on a system increases its internal energy

Questions & Step-by-Step Solutions

Which of the following statements is NOT a consequence of the first law of thermodynamics?
  • Step 1: Understand the first law of thermodynamics, which says that energy cannot be created or destroyed, only transformed from one form to another.
  • Step 2: Recognize that this law implies that the total energy in a closed system remains constant.
  • Step 3: Note that heat naturally flows from hot to cold, and it requires work to make it flow from cold to hot.
  • Step 4: Identify the statements provided in the question and determine which one does not align with the principles of energy conservation and heat flow.
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