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AP EAMCET2010ChemistryThermodynamics (C)

A system is provided with 50 ~J of heat and the work done on the system is 10 ~J . What is the change in internal energy of the system in joules?

Options

  1. A60
  2. B40
  3. C50
  4. D10

Correct answer

A. 60

Step-by-step solution

From first law of thermodynamics, E=Q+W Since, heat is provided to the system, Q=+50 ~J and work is done on the system, W =+10 ~J E =50+10=60 ~J

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