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A system undergoes a process in which 300 J of heat is added to the system, and 150 J of work is done on the system. What is
the change in internal energy?

Option: 1

150 J


Option: 2

450 J


Option: 3

600 J


Option: 4

-150 J


Answers (1)

best_answer

The change in internal energy is given by the first law of thermodynamics: \mathrm{ \Delta U=Q+W}. Substituting the values: \mathrm{\Delta U=300 \mathrm{~J}+(150 \mathrm{~J})=450 \mathrm{~J}}.
So, correct option is (2)

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