A balloon of of air deflated, a process which does 500kj of work to the balloon. The balloon gives off 10kj of energy to the surrounding air. What was the net change of the internal air in the balloon.
To determine the net change in internal air in the balloon, we need to consider the work done on the balloon and the energy transferred to the surrounding air.
Given:
- Work done on the balloon = -500 kJ (negative because work is done on the system)
- Energy transferred to surrounding air = -10 kJ (negative because energy leaves the system)
The net change in internal energy is given by the sum of the work done on the system and the energy transferred out of the system:
Net Change in Internal Energy = Work done on the system + Energy transferred out of the system
Net Change in Internal Energy = -500 kJ + (-10 kJ)
Net Change in Internal Energy = -510 kJ
The net change in internal air in the balloon is -510 kJ.
To determine the net change of the internal air in the balloon, we need to consider the work done on the balloon and the energy it gives off to the surrounding air.
Given information:
- Work done on the balloon (W) = -500 kJ (negative because work is done on the system)
- Energy given off by the balloon (Q) = -10 kJ (negative because energy is lost by the system)
To find the net change in internal energy (ΔU) of the balloon, we can use the First Law of Thermodynamics:
ΔU = Q + W
Substituting the given values:
ΔU = -10 kJ + (-500 kJ)
ΔU = -510 kJ
Therefore, the net change in internal energy of the air in the balloon is -510 kJ.