Answer: The volume of balloon when it reaches the surface is 7.5 L.
Step-by-step explanation:
The normal pressure at the surface of sea is 1 atm.
To calculate the volume of balloon, we use the equation given by Boyle's law.
This law states that pressure of the gas is inversely proportional to the volume of the gas at constant temperature. The equation for this law follows:
![P_1V_1=P_2V_2](https://img.qammunity.org/2020/formulas/chemistry/middle-school/y64idwsvf8qno3dlnqft8zqxtmb1pj6crz.png)
are initial pressure and volume.
are final pressure and volume.
We are given:
![P_1=2.5atm\\V_1=3.00L\\P_2=1atm\\V_2=?L](https://img.qammunity.org/2020/formulas/physics/high-school/i8xux5yksl4tjhlv5vvcfg8h6iiw1ykqzv.png)
Putting values in above equation, we get:
![2.5atm* 3L=1atm* V_2\\\\V_2=7.5L](https://img.qammunity.org/2020/formulas/physics/high-school/aygd1sq3suva4xpjh7znbc2p7e0zy926nw.png)
Hence, the volume of balloon when it reaches the surface is 7.5 L.