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What is the change in internal energy of a system if 200 J of heat is added and 50 J of work is done by the system?

Practice Questions

1 question
Q1
What is the change in internal energy of a system if 200 J of heat is added and 50 J of work is done by the system?
  1. 150 J
  2. 250 J
  3. 200 J
  4. 100 J

Questions & Step-by-step Solutions

1 item
Q
Q: What is the change in internal energy of a system if 200 J of heat is added and 50 J of work is done by the system?
Solution: Using the first law of thermodynamics, ΔU = Q - W = 200 J - 50 J = 150 J.
Steps: 0

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