[quote=@Vec] As for Gay-Lussac's Law. Say you got your trusty glass cube once again. This time it's got an opening on its top where you put a lid so that the gas inside cannot escape. Say now that you put on top of the lid a weight right? The weight will apply a force to the lid and it will go downwards until it stops. At that point, the force applied by the weight is equalized by the force applied by the pressure of the gas. Now, you take your torch and you heat the bottom of the cube. The temperature of the glass and the gas inside it increases, thus making the gas expand and thus increasing the force that the gas applies to the lid, pushing it upwards and effectivelly increasing the volume of the glass cube. The pressure though of the gas is constant. mathematically if p= constant then V/T = constant. [/quote] HOLY SHIT. Vec, I love you. I really, truly love you. Platonically. Like, we should be bros. We should get bro-married. Because I'm sure that's a thing. [s]You wouldn't happen to know anything about molality and concentration and stupid liquidy stuff too, would you? XD[/s]