How to Calculate Pressure Change in a Balloon?
What is the pressure of air on the inside of the balloon?
A balloon contains 2.0 L of air at 101.5 kPa. You squeeze the balloon to a volume of 0.75 L. What is the pressure of air on the inside of the balloon?
Answer:
The answer is: P2 = 271 kPa
Hello! Let's solve this pressure problem in a balloon!
The data we have are:
P1: 101.5 kPa
V1: 2 L
V2: 0.75 L
P2 ?:
P is pressure and V is volume.
In this case, we know the formula for Boyle's Law:
(P1) (V1) = (P2) (V2)We want to find out the pressure inside the balloon, which is P2.
Let's calculate:
P2 = P1 * V1 / V2
P2 = (101.5 kPa * 2 L) / 0.75 L
P2 = 271 kPa
Therefore, the pressure of air on the inside of the balloon is 271 kPa. Enjoy experimenting with balloons!