Three questions about light

At 300 mm hg, a gas has a volume of 380 l, what is the volume at standard pressure

In medium-sized stars such as the sun, nuclear fusion almost always means the fusing of nuclei to form , but larger stars can produce elements as heavy as

How is the electron sea model of metallic bonding different from the band theory? how are they the same? give at least one similarity and one difference between the models