The net change of the internal energy of the air in the balloon can be calculated by subtracting the energy given to the surrounding air from the work done to the air inside the balloon.
Net change in internal energy = Work done to the air - Energy given to the surrounding air
Net change in internal energy = 500 kJ - 10 kJ
Net change in internal energy = 490 kJ
A balloon of air is inflated, a process which does 500kj of work to the air of the balloon. The balloon gives 10kj of energy to the surrounding air. What was the net change of the internal energy of the air in the balloon
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