The molecules are continually colliding with each other and with the walls of the container. When a molecule collides with the wall, they exert small force on the wall The pressure exerted by the gas is due to the sum of all these collision forces. ... This increases the pressure. What ...
• No good limit on when life started 6/6/2015 AST 248, Fall 2005 11 Accretion (1) • Starting point: solar nebula, collapsing cloud of gas + dust Protoplanetary disk: Sun, surrounded by disk of gas + dust Condensing solid particles: ...