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NEETChemistryThermodynamics (C)

What are the implications of the first law of thermodynamics for isolated systems?

Options

  1. AThe internal energy of an isolated system is constant.
  2. BThe heat transferred to an isolated system is equal to the work done on the system.
  3. CThe entropy of an isolated system always increases.
  4. DAll of the above

Correct answer

A. The internal energy of an isolated system is constant.

Step-by-step solution

The first law of thermodynamics states that the change in internal energy of a system is equal to the sum of the heat transferred to the system and the work done on the system. For an isolated system, there is no heat transfer or work done, so the change in internal energy is zero.

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