When air is pumped into a cycle tyre the volume and pressure of the air in the tyre both are increased. What about Boyle's law in this case?

When air is pumped into a cycle tyre the volume and pressure of the ai

1.	When air is pumped into a cycle tyre the volume and pressure of the air in the tyre both are increased. What about Boyle's law in this case?
Answer» Solution :when there is pumped into a cycle tyre, more and more number of AIR MOLECULES are pumped in to a tire of the cycle . So number of molecules will be increased . Boyle's law is APPLICABLE only when number of molecules remains constant .In this case it does not OBEY Boyle's law .