When we pump the football the volume and pressure of its internal gases both increase at a time.Is this against the boyle's law?

1 Answer
Sep 17, 2016


#"Boyle's Law"# assumes a given quantity of gas.


Clearly, if we pump in air into the football, the given assumption is invalid. For a full bladder (or whatever they fill footballs with these days), with a given quantity of gas present, the gas laws would give a reasonable approximation of temperature, pressure, and volume.