Question

how can balloon seller fill a large number of balloons from a single cylinder of gas

Answer 1

because the gas in the cylinder is compressed thereby allowing a larger quantity to be stored in a smaller volume

Answer 2

Answer: This is because pressure is inversely proportional to volume.

Explanation:

Boyle's law states that pressure of the gas is inversely related to volume of the gas at constant temperature.

Mathematically,

$P\propto \frac{1}{V}$

When pressure of the gas increases, the volume of the gas decreases and vice-versa.

When the air is present in cylinder, the gas is at high pressure. So, the volume of gas is less. But, when the nob of the cylinder is open, the pressure of the gas decreases and volume increases.

As, the volume increases, large number of balloons get filled.

Hence, this is because pressure is inversely proportional to volume.