1. In Boyle’s Law, which pressure are we talking about, is it the pressure exerted by the container on the gas or is it the pressure exerted by the gas on the container?

1. In Charle’s law, how can the volume of gas increase while pressure is constant?

1. In Gay-Lussac’s law, why is there no change in volume with increase in temperature?

Hey Student..
As per what is required in this question, you need to take into account the basic formula of ideal gas equation..the pressure is always the pressure exerted by the molecules of gas on the walls of the container..
also pls do post the ques in separate loops so that i can give you the detailed answers for all those questions