Question

Inflating a balloon seems to violate Boyle's law. Why?

Answer 1

Boyle's law:-

• Boyle's law states that the pressure which is exerted by a dry gas is inversely proportional to the volume occupied by the gas.
• This happens only at a constant temperature and for a given mass.
• Mathematically representing this would be like: $\mathrm{P}\propto \frac{1}{\mathrm{V}}$
• Here P= Pressure of the gas and V= Volume of the gas .

Inflating a balloon:-

• When we inflate a balloon, the volume of the gas keeps getting increased.
• But on the other hand, the pressure of the gas also keeps getting increased.
• This is a violation of Boyle's law, as according to this law the pressure should decrease as the volume is increasing.
• Thus following this law the pressure should decrease as we are increasing the volume of the gas, but this does not happen.
• Hence inflating a balloon seems to violate Boyle's law.