A system absorbs 50 kJ heat and does 20 kJ of work. What is the net change in the…
Physics · Class 11 · CBSE — Thermodynamics
A system absorbs 50 kJ heat and does 20 kJ of work. What is the net change in the internal energy of the system?
- Increase by 30 kJ
- Decrease by 30 kJ
- Increase by 70 kJ
- Decrease by 70 kJ
Answer
(A) Increase by 30 kJ
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