Agas is located inside a closed container. if the gas is allowed to occupy more volume inside the container, what will happen to the pressure? (note: there is no gas added to the container.)

Pressure in the container will decrease.

More specifically, hydrogen bonds are an attraction between the electronegative oxygen and the less electronegative hydrogen on a different molecule. It is extra strong as far as intermolecular forces go because the oxygen bonded to the hydrogens pulls the electrons away from the hydrogen, leaving the positive nucleus more exposed.