A balloon of air deflated and does 300kj of work to the surrounding air. While deflating the air inside the balloon transfers 60kj of energy to the outside of the balloon. What is the total change of the inside the balloon when it deflates?
The total change in energy inside the balloon when it deflates can be calculated by subtracting the work done by the balloon to the surrounding air from the energy transferred to the outside.
Total change in energy = Energy transferred to the outside - Work done by the balloon
Total change in energy = 60kJ - 300kJ
Total change in energy = -240kJ
The total change in energy inside the balloon when it deflates is -240kJ.
To find the total change in energy inside the balloon when it deflates, we need to consider the work done by the balloon on the surrounding air and the energy transferred from the inside to the outside of the balloon.
The work done by the balloon on the surrounding air is given as -300 kJ (negative because work is being done on the surroundings).
The energy transferred from the inside to the outside of the balloon is given as 60 kJ.
To calculate the total change in energy, we sum up these two values:
Total change in energy = Work done by the balloon + Energy transferred
= -300 kJ + 60 kJ
= -240 kJ
Therefore, the total change in energy inside the balloon when it deflates is -240 kJ. This indicates a decrease in the internal energy of the air inside the balloon.