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In a closed system, if 100 J of heat is added and 40 J of work is done by the system, what is the change in internal energy? (2022)

Practice Questions

1 question
Q1
In a closed system, if 100 J of heat is added and 40 J of work is done by the system, what is the change in internal energy? (2022)
  1. 60 J
  2. 40 J
  3. 100 J
  4. Zero

Questions & Step-by-step Solutions

1 item
Q
Q: In a closed system, if 100 J of heat is added and 40 J of work is done by the system, what is the change in internal energy? (2022)
Solution: According to the First Law of Thermodynamics, ΔU = Q - W. Here, ΔU = 100 J - 40 J = 60 J.
Steps: 0

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