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NEETChemistryThermodynamics (C)

How can the internal energy of a system be increased without transferring any heat to the system?

Options

  1. ABy doing work on the system
  2. BBy decreasing the temperature of the system
  3. CBy increasing the entropy of the system
  4. DNone of the above

Correct answer

A. By doing work on the system

Step-by-step solution

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. If work is done on the system, then the internal energy of the system will increase, even if there is no heat transfer.

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