The volume of a sample of H2 gas was decreased from 14.81 to 2.63 L. If the final pressure exerted by the H2 sample was 311.7 kPa, what pressure did the H2 exert before its volume was decreased? kPa

the molecules move in straight line until they collide with each other or with the walls of the container. collisions are perfectly elastic; when two molecules collide, they change their directions and kinetic energies, but the total kinetic energy is conserved.

explanation:

b) nuclear ive learned that in a pedtrodic table