The work extracted from the system is equal to the heat provided to the system. Which of the following is TRUE for the energy of the system?
Increase in internal energy
Decrease in internal energy
Internal energy remains constant
This process in not possible
Internal energy remains constant
According to question, work extracted from the system = Heat provided to the system i.e. W = Q
From first law of thermodynamics,
Therefore, internal energy remains constant.
Hence, the correct option is (C).
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