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The energy is always conserved for a system which is

Options

  1. Aisolated only
  2. Bnon-isolated only
  3. Cboth isolated and non-isolated
  4. Dnone of above

Correct answer

A. isolated only

Step-by-step solution

According to the law of conservation of energy, the total energy of an isolated system remains constant over time. For a non-isolated system, energy can be exchanged with the surroundings in the form of work, heat, or matter, meaning the energy of the system itself is not conserved. Thus, energy is always conserved for an isolated system only. Answer: isolated only

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